feat(i18n): add model name display option and improve localization, fixes #440

- Add new model name display setting with options to show model name or file name
- Implement helper function to determine display name based on user preference
- Update model card footer to use dynamic display name
- Include model name display setting in settings modal and state management
- Remove redundant labels from display density descriptions in multiple locales
- Simplify card info display descriptions by removing duplicate text

The changes provide cleaner UI text and add flexibility for users to choose between displaying model names or file names in card footers.

locales/zh-CN.json

@@ -225,9 +225,9 @@
             },
             "displayDensityHelp": "选择每行显示卡片数量：",
             "displayDensityDetails": {
-                "default": "默认：5（1080p），6（2K），8（4K）",
-                "medium": "中等：6（1080p），7（2K），9（4K）",
-                "compact": "紧凑：7（1080p），8（2K），10（4K）"
+                "default": "5（1080p），6（2K），8（4K）",
+                "medium": "6（1080p），7（2K），9（4K）",
+                "compact": "7（1080p），8（2K），10（4K）"
             },
             "displayDensityWarning": "警告：高密度可能导致资源有限的系统性能下降。",
             "cardInfoDisplay": "卡片信息显示",
@@ -237,8 +237,18 @@
             },
             "cardInfoDisplayHelp": "选择何时显示模型信息和操作按钮：",
             "cardInfoDisplayDetails": {
-                "always": "始终可见：标题和底部始终显示",
-                "hover": "悬停时显示：仅在悬停卡片时显示标题和底部"
+                "always": "标题和底部始终显示",
+                "hover": "仅在悬停卡片时显示标题和底部"
+            },
+            "modelNameDisplay": "模型名称显示",
+            "modelNameDisplayOptions": {
+                "modelName": "模型名称",
+                "fileName": "文件名"
+            },
+            "modelNameDisplayHelp": "选择在模型卡片底部显示的内容：",
+            "modelNameDisplayDetails": {
+                "modelName": "显示模型的描述性名称",
+                "fileName": "显示磁盘上的实际文件名"
             }
         },
         "folderSettings": {