feat(global-favorites): implement global favorites feature with drag-and-drop support

- Added GlobalFavoritesListComponent to manage and display favorite channels.
- Created GlobalFavoritesPageComponent to serve as the main page for global favorites.
- Implemented loading and displaying of EPG data for channels.
- Introduced GlobalFavoritesService to handle fetching, removing, and reordering favorites from various sources (M3U, Xtream, Stalker).
- Enhanced unified favorite channel interface to support new features and data structures.
- Added necessary HTML and SCSS for the global favorites page layout and styling.
- Updated database schema to include position column for favorites to support ordering.
- Added typings for new database operations related to global favorites.

libs/shared/database/src/lib/connection.ts

@@ -232,6 +232,8 @@ const MIGRATION_STATEMENTS = [
     `ALTER TABLE playlists ADD COLUMN favorites TEXT`,
     `ALTER TABLE playlists ADD COLUMN recently_viewed TEXT`,
     `ALTER TABLE playlists ADD COLUMN payload TEXT`,
+    // v1.2.0 -> v1.3.0: Add position column to favorites for global favorites ordering
+    `ALTER TABLE favorites ADD COLUMN position INTEGER DEFAULT 0`,
 ];
 
 /**