style(ui): 收藏行高恢复至原版尺寸

封面 38->44、标题 14->16、副标题 12->13、行内边距回到 2。
媒体库区间的收紧（12 / 16）保持不变。

lib/pages/home_page.dart

@@ -458,20 +458,20 @@ class _HomePageState extends BaseState<HomePage> {
       itemBuilder: (context, index) {
         final song = _favorites[index];
         return Padding(
-          padding: EdgeInsets.zero,
+          padding: const EdgeInsets.symmetric(vertical: 2),
           child: ListTile(
             contentPadding: EdgeInsets.zero,
             visualDensity: VisualDensity.compact,
             minVerticalPadding: 0,
             leading: SongArtwork(
               filePath: song.artworkPath,
-              size: 38,
+              size: 44,
               fallbackIcon: Icons.music_note,
             ),
             title: Text(
               song.displayTitle,
               style: const TextStyle(
-                fontSize: 14,
+                fontSize: 16,
                 fontWeight: FontWeight.w400,
                 color: Colors.white,
               ),
@@ -480,7 +480,7 @@ class _HomePageState extends BaseState<HomePage> {
             ),
             subtitle: Text(
               song.displaySubtitle,
-              style: TextStyle(fontSize: 12, color: Colors.grey[400]),
+              style: TextStyle(fontSize: 13, color: Colors.grey[400]),
               maxLines: 1,
               overflow: TextOverflow.ellipsis,
             ),