feat(ui): add setting to keep the action bar visible while scrolling (#1095)

Adds a 'Keep Action Bar Visible' toggle (default off) under
Settings > Interface > Layout Settings. When enabled, the controls bar
(Refresh, Download, etc.) and the breadcrumb nav are wrapped in a shared
sticky container (.sticky-topbar) so both stay pinned as one unit; when
disabled, the wrapper is display: contents and the original behavior
(only the breadcrumb stays visible) is preserved.

templates/checkpoints.html

@@ -54,8 +54,10 @@
 {% endblock %}
 
 {% block content %}
+    <div class="sticky-topbar">
     {% include 'components/controls.html' %}
     {% include 'components/breadcrumb.html' %}
+    </div>
     {% include 'components/duplicates_banner.html' %}
     {% include 'components/folder_sidebar.html' %}
     

templates/components/modals/settings/interface.html

@@ -79,6 +79,9 @@
         <!-- Group by model toggle -->
         {{ sm.setting_toggle('groupByModel', 'group_by_model', 'settings.layoutSettings.groupByModel', 'settings.layoutSettings.groupByModelHelp') }}
 
+        <!-- Sticky controls toggle -->
+        {{ sm.setting_toggle('stickyControls', 'sticky_controls', 'settings.layoutSettings.stickyControls', 'settings.layoutSettings.stickyControlsHelp') }}
+
         {{ sm.setting_select('cardInfoDisplay', 'card_info_display', 'settings.layoutSettings.cardInfoDisplay', [
             ('always', 'settings.layoutSettings.cardInfoDisplayOptions.always'),
             ('hover', 'settings.layoutSettings.cardInfoDisplayOptions.hover'),

templates/embeddings.html

@@ -53,8 +53,10 @@
 {% endblock %}
 
 {% block content %}
+    <div class="sticky-topbar">
     {% include 'components/controls.html' %}
     {% include 'components/breadcrumb.html' %}
+    </div>
     {% include 'components/duplicates_banner.html' %}
     {% include 'components/folder_sidebar.html' %}
     

templates/loras.html

@@ -8,8 +8,10 @@
 {% block init_check_url %}/api/loras/list?page=1&page_size=1{% endblock %}
 
 {% block content %}
+    <div class="sticky-topbar">
     {% include 'components/controls.html' %}
     {% include 'components/breadcrumb.html' %}
+    </div>
     {% include 'components/duplicates_banner.html' %}
     {% include 'components/folder_sidebar.html' %}
 

templates/recipes.html

@@ -64,10 +64,12 @@
 {% block init_check_url %}/api/recipes?page=1&page_size=1{% endblock %}
 
 {% block content %}
-<!-- Recipe controls -->
+<!-- Sticky topbar: controls + breadcrumb -->
+<div class="sticky-topbar">
 {% include 'components/controls.html' %}
 <!-- Breadcrumb Navigation -->
 {% include 'components/breadcrumb.html' %}
+</div>
 
 <!-- Duplicates banner (hidden by default) -->
 <div id="duplicatesBanner" class="duplicates-banner" style="display: none;">