feat: enhance song management and notification features

- Updated SongList.vue to enable default sorting with a boolean flag.
- Modified TempComponent.vue to include useNotification for better user feedback.
- Refined useLiveRequest.ts to enforce type safety on song request settings.
- Adjusted RTCClient.ts to improve event handling and connection logic.
- Enhanced useVTsuruHub.ts to ensure SignalR connection is awaited during initialization.
- Improved ManageLayout.vue by reorganizing menu options for better user experience.
- Added folder scanning functionality in SongListManageView.vue for importing songs from local directories.
- Implemented OBS notification system in various OBS-related components for real-time updates.
- Removed outdated documentation files related to local question saving functionality.
- Introduced a new store useOBSNotification.ts to manage OBS notifications effectively.

src/components/SongList.vue

@@ -294,7 +294,7 @@ function createColumns(): DataTableColumns<SongsInfo> {
       resizable: true,
       minWidth: 150, // 增加最小宽度
       width: 300,
-      sorter: 'default', // 启用默认排序
+      sorter: true, // 启用默认排序
       render(data) {
         // 同时显示原名和翻译名 (如果存在)
         return h(NSpace, { vertical: true, size: 0, wrap: false }, () => [