fix(flutter): mini player heart/kebab span title+artist height

Move the like + kebab buttons out of the title row and place them as
siblings to the title/artist column. Row's default crossAxisAlignment
centers them against the row's full 48dp height (set by the album
art), so visually they sit at the vertical center of the title+artist
block instead of being pinned to the title baseline.

Width stays 32dp each — horizontal footprint matches what we had.
Bumped icon size 18→20 since they have more vertical space to occupy.

flutter_client/lib/player/player_bar.dart

@@ -89,6 +89,9 @@ class _TrackInfo extends StatelessWidget {
     final artistName = (media.artist ?? '').trim();
 
     return Row(
+      // Default centering vertically aligns the like/kebab buttons
+      // against the album art (48dp) — visually they span the title +
+      // artist block instead of sitting on the title baseline.
       crossAxisAlignment: CrossAxisAlignment.center,
       children: [
         if (media.artUri != null)
@@ -115,39 +118,11 @@ class _TrackInfo extends StatelessWidget {
             mainAxisAlignment: MainAxisAlignment.center,
             mainAxisSize: MainAxisSize.min,
             children: [
-              // Title row: title text + inline like + kebab. The
-              // like/kebab buttons get their default 48dp tap target
-              // shrunk to 32dp so the title has room.
-              Row(
-                mainAxisSize: MainAxisSize.max,
-                crossAxisAlignment: CrossAxisAlignment.center,
-                children: [
-                  Expanded(
-                    child: Text(
-                      media.title,
-                      maxLines: 1,
-                      overflow: TextOverflow.ellipsis,
-                      style: TextStyle(color: fs.parchment, fontSize: 14),
-                    ),
-                  ),
-                  SizedBox(
-                    width: 32,
-                    height: 32,
-                    child: LikeButton(
-                      kind: LikeKind.track,
-                      id: media.id,
-                      size: 18,
-                    ),
-                  ),
-                  SizedBox(
-                    width: 32,
-                    height: 32,
-                    child: TrackActionsButton(
-                      track: _trackRefFromMediaItem(media),
-                      hideQueueActions: true,
-                    ),
-                  ),
-                ],
+              Text(
+                media.title,
+                maxLines: 1,
+                overflow: TextOverflow.ellipsis,
+                style: TextStyle(color: fs.parchment, fontSize: 14),
               ),
               if (artistName.isNotEmpty)
                 Text(
@@ -159,6 +134,28 @@ class _TrackInfo extends StatelessWidget {
             ],
           ),
         ),
+        // Like + kebab as siblings to the title/artist column rather
+        // than nested inside the title row. Width stays 32dp each so
+        // horizontal footprint matches what we had; height stretches
+        // to the row's full 48dp so the icons sit at vertical center
+        // against the title+artist block.
+        SizedBox(
+          width: 32,
+          height: 48,
+          child: LikeButton(
+            kind: LikeKind.track,
+            id: media.id,
+            size: 20,
+          ),
+        ),
+        SizedBox(
+          width: 32,
+          height: 48,
+          child: TrackActionsButton(
+            track: _trackRefFromMediaItem(media),
+            hideQueueActions: true,
+          ),
+        ),
       ],
     );
   }