chore: remove keyboard navigation UI elements and related code

- Delete static/css/components/keyboard-nav.css entirely
- Remove @import of keyboard-nav.css from style.css
- Remove keyboard-nav-hint divs from controls.html and recipes.html
- Clean up all keyboard.* translation keys from 10 locale files

The actual keyboard scrolling handlers (PageUp/PageDown in infiniteScroll.js
and VirtualScroller.js) are kept as they provide core scroll functionality.

locales/de.json

@@ -1424,15 +1424,6 @@
             "duplicate": "Dieser Tag existiert bereits"
         }
     },
-    "keyboard": {
-        "navigation": "Tastatur-Navigation:",
-        "shortcuts": {
-            "pageUp": "Eine Seite nach oben scrollen",
-            "pageDown": "Eine Seite nach unten scrollen",
-            "home": "Zum Anfang springen",
-            "end": "Zum Ende springen"
-        }
-    },
     "initialization": {
         "title": "Initialisierung",
         "message": "Ihr Arbeitsbereich wird vorbereitet...",

locales/en.json

@@ -1424,15 +1424,6 @@
             "duplicate": "This tag already exists"
         }
     },
-    "keyboard": {
-        "navigation": "Keyboard Navigation:",
-        "shortcuts": {
-            "pageUp": "Scroll up one page",
-            "pageDown": "Scroll down one page",
-            "home": "Jump to top",
-            "end": "Jump to bottom"
-        }
-    },
     "initialization": {
         "title": "Initializing",
         "message": "Preparing your workspace...",

locales/es.json

@@ -1424,15 +1424,6 @@
             "duplicate": "Esta etiqueta ya existe"
         }
     },
-    "keyboard": {
-        "navigation": "Navegación por teclado:",
-        "shortcuts": {
-            "pageUp": "Desplazar hacia arriba una página",
-            "pageDown": "Desplazar hacia abajo una página",
-            "home": "Saltar al inicio",
-            "end": "Saltar al final"
-        }
-    },
     "initialization": {
         "title": "Inicializando",
         "message": "Preparando tu espacio de trabajo...",

locales/fr.json

@@ -1424,15 +1424,6 @@
             "duplicate": "Ce tag existe déjà"
         }
     },
-    "keyboard": {
-        "navigation": "Navigation au clavier :",
-        "shortcuts": {
-            "pageUp": "Défiler d'une page vers le haut",
-            "pageDown": "Défiler d'une page vers le bas",
-            "home": "Aller en haut",
-            "end": "Aller en bas"
-        }
-    },
     "initialization": {
         "title": "Initialisation",
         "message": "Préparation de votre espace de travail...",

locales/he.json

@@ -1424,15 +1424,6 @@
             "duplicate": "תגית זו כבר קיימת"
         }
     },
-    "keyboard": {
-        "navigation": "ניווט במקלדת:",
-        "shortcuts": {
-            "pageUp": "גלול עמוד אחד למעלה",
-            "pageDown": "גלול עמוד אחד למטה",
-            "home": "קפוץ להתחלה",
-            "end": "קפוץ לסוף"
-        }
-    },
     "initialization": {
         "title": "מאתחל",
         "message": "מכין את סביבת העבודה שלך...",

locales/ja.json

@@ -1424,15 +1424,6 @@
             "duplicate": "このタグは既に存在します"
         }
     },
-    "keyboard": {
-        "navigation": "キーボードナビゲーション：",
-        "shortcuts": {
-            "pageUp": "1ページ上にスクロール",
-            "pageDown": "1ページ下にスクロール",
-            "home": "トップにジャンプ",
-            "end": "ボトムにジャンプ"
-        }
-    },
     "initialization": {
         "title": "初期化中",
         "message": "ワークスペースを準備中...",

locales/ko.json

@@ -1424,15 +1424,6 @@
             "duplicate": "이 태그는 이미 존재합니다"
         }
     },
-    "keyboard": {
-        "navigation": "키보드 내비게이션:",
-        "shortcuts": {
-            "pageUp": "한 페이지 위로 스크롤",
-            "pageDown": "한 페이지 아래로 스크롤",
-            "home": "맨 위로 이동",
-            "end": "맨 아래로 이동"
-        }
-    },
     "initialization": {
         "title": "초기화 중",
         "message": "작업공간을 준비하고 있습니다...",

locales/ru.json

@@ -1424,15 +1424,6 @@
             "duplicate": "Этот тег уже существует"
         }
     },
-    "keyboard": {
-        "navigation": "Навигация с клавиатуры:",
-        "shortcuts": {
-            "pageUp": "Прокрутить на страницу вверх",
-            "pageDown": "Прокрутить на страницу вниз",
-            "home": "Перейти к началу",
-            "end": "Перейти к концу"
-        }
-    },
     "initialization": {
         "title": "Инициализация",
         "message": "Подготовка вашего рабочего пространства...",

locales/zh-CN.json

@@ -1424,15 +1424,6 @@
             "duplicate": "该标签已存在"
         }
     },
-    "keyboard": {
-        "navigation": "键盘导航：",
-        "shortcuts": {
-            "pageUp": "向上一页滚动",
-            "pageDown": "向下一页滚动",
-            "home": "跳到顶部",
-            "end": "跳到底部"
-        }
-    },
     "initialization": {
         "title": "初始化",
         "message": "正在准备你的工作空间...",

locales/zh-TW.json

@@ -1424,15 +1424,6 @@
             "duplicate": "此標籤已存在"
         }
     },
-    "keyboard": {
-        "navigation": "鍵盤導覽：",
-        "shortcuts": {
-            "pageUp": "向上捲動一頁",
-            "pageDown": "向下捲動一頁",
-            "home": "跳至頂部",
-            "end": "跳至底部"
-        }
-    },
     "initialization": {
         "title": "初始化",
         "message": "正在準備您的工作區...",

static/css/components/keyboard-nav.css

@@ -1,96 +0,0 @@
-/* Keyboard navigation indicator and help */
-.keyboard-nav-hint {
-    display: inline-flex;
-    align-items: center;
-    justify-content: center;
-    position: relative;
-    width: 32px;
-    height: 32px;
-    border-radius: 50%;
-    background: var(--card-bg);
-    border: 1px solid var(--border-color);
-    color: var(--text-color);
-    cursor: help;
-    transition: var(--transition-base);
-    margin-left: 8px;
-}
-
-.keyboard-nav-hint:hover {
-    background: var(--lora-accent);
-    color: white;
-    transform: translateY(-2px);
-    box-shadow: var(--shadow-sm);
-}
-
-.keyboard-nav-hint i {
-    font-size: 14px;
-}
-
-/* Tooltip styling */
-.tooltip {
-    position: relative;
-}
-
-.tooltip .tooltiptext {
-    visibility: hidden;
-    width: 240px;
-    background-color: var(--lora-surface);
-    color: var(--text-color);
-    text-align: center;
-    border-radius: var(--border-radius-xs);
-    padding: 8px;
-    position: absolute;
-    z-index: 9999; /* Ensure tooltip appears above cards */
-    right: 120%; /* Position tooltip to the left of the icon */
-    top: 50%; /* Vertically center */
-    transform: translateY(-15%); /* Vertically center */
-    opacity: 0;
-    transition: opacity 0.3s;
-    box-shadow: var(--shadow-lg);
-    border: 1px solid var(--lora-border);
-    font-size: 0.85em;
-    line-height: 1.4;
-}
-
-.tooltip .tooltiptext::after {
-    content: "";
-    position: absolute;
-    top: 50%; /* Vertically center arrow */
-    left: 100%; /* Arrow on the right side */
-    margin-top: -5px;
-    border-width: 5px;
-    border-style: solid;
-    border-color: transparent transparent transparent var(--lora-border); /* Arrow points right */
-}
-
-.tooltip:hover .tooltiptext {
-    visibility: visible;
-    opacity: 1;
-}
-
-/* Keyboard shortcuts table */
-.keyboard-shortcuts {
-    width: 100%;
-    border-collapse: collapse;
-    margin-top: 5px;
-}
-
-.keyboard-shortcuts td {
-    padding: 4px;
-    text-align: left;
-}
-
-.keyboard-shortcuts td:first-child {
-    font-weight: bold;
-    width: 40%;
-}
-
-.key {
-    display: inline-block;
-    background: var(--bg-color);
-    border: 1px solid var(--border-color);
-    border-radius: 3px;
-    padding: 1px 5px;
-    font-size: 0.8em;
-    box-shadow: var(--shadow-xs);
-}

static/css/style.css

@@ -36,7 +36,7 @@
 @import 'components/initialization.css';
 @import 'components/progress-panel.css';
 @import 'components/duplicates.css'; /* Add duplicates component */
-@import 'components/keyboard-nav.css'; /* Add keyboard navigation component */
+
 @import 'components/statistics.css'; /* Add statistics component */
 @import 'components/sidebar.css'; /* Add sidebar component */
 @import 'components/media-viewer.css';

templates/components/controls.html

@@ -100,30 +100,6 @@
                     <span id="doctorStatusBadge" class="doctor-status-badge hidden" aria-hidden="true"></span>
                 </button>
             </div>
-            <div class="keyboard-nav-hint tooltip">
-                <i class="fas fa-keyboard"></i>
-                <span class="tooltiptext">
-                    <span>{{ t('keyboard.navigation') }}</span>
-                    <table class="keyboard-shortcuts">
-                        <tr>
-                            <td><span class="key">Page Up</span></td>
-                            <td>{{ t('keyboard.shortcuts.pageUp') }}</td>
-                        </tr>
-                        <tr>
-                            <td><span class="key">Page Down</span></td>
-                            <td>{{ t('keyboard.shortcuts.pageDown') }}</td>
-                        </tr>
-                        <tr>
-                            <td><span class="key">Home</span></td>
-                            <td>{{ t('keyboard.shortcuts.home') }}</td>
-                        </tr>
-                        <tr>
-                            <td><span class="key">End</span></td>
-                            <td>{{ t('keyboard.shortcuts.end') }}</td>
-                        </tr>
-                    </table>
-                </span>
-            </div>
         </div>
     </div>
 </div>

templates/recipes.html

@@ -137,30 +137,6 @@
                     <span id="doctorStatusBadge" class="doctor-status-badge hidden" aria-hidden="true"></span>
                 </button>
             </div>
-            <div class="keyboard-nav-hint tooltip">
-                <i class="fas fa-keyboard"></i>
-                <span class="tooltiptext">
-                    <span>{{ t('keyboard.navigation') }}</span>
-                    <table class="keyboard-shortcuts">
-                        <tr>
-                            <td><span class="key">Page Up</span></td>
-                            <td>{{ t('keyboard.shortcuts.pageUp') }}</td>
-                        </tr>
-                        <tr>
-                            <td><span class="key">Page Down</span></td>
-                            <td>{{ t('keyboard.shortcuts.pageDown') }}</td>
-                        </tr>
-                        <tr>
-                            <td><span class="key">Home</span></td>
-                            <td>{{ t('keyboard.shortcuts.home') }}</td>
-                        </tr>
-                        <tr>
-                            <td><span class="key">End</span></td>
-                            <td>{{ t('keyboard.shortcuts.end') }}</td>
-                        </tr>
-                    </table>
-                </span>
-            </div>
         </div>
     </div>