refactor(ImageGallery, HomeScreen, PostService, UserStore): streamline post type handling and improve tab navigation

- Updated ImageGallery to manage loading states more effectively and prevent unnecessary updates.
- Refactored HomeScreen to remove the 'recommend' post type, simplifying the post type options.
- Adjusted PostService and UserStore to eliminate references to 'recommend', ensuring consistency across the application.
- Enhanced tab navigation in SimpleMobileTabNavigator to optimize rendering and manage mounted tabs more efficiently.
- Improved error handling and loading states in various components for better user experience.

src/data/repositories/interfaces/IPostRepository.ts

@@ -17,8 +17,8 @@ export interface GetPostsParams {
   pageSize?: number;
   /** 游标 - 用于无限滚动加载 */
   cursor?: string;
-  /** 帖子类型筛选（可选）：recommend, follow, hot, latest */
-  post_type?: 'recommend' | 'follow' | 'hot' | 'latest';
+  /** 帖子类型筛选（可选）：follow, hot, latest */
+  post_type?: 'follow' | 'hot' | 'latest';
   /** 社区ID过滤 */
   communityId?: string;
   /** 作者ID过滤 */