fix: conditionally show cover header in artist skeleton and add showCoverHeader param to ArtistScreenSkeleton

lib/screens/artist_screen.dart

@@ -492,7 +492,15 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
                   hasDiscography: hasDiscography,
                 ),
                 if (_isLoadingDiscography)
-                  const SliverToBoxAdapter(child: ArtistScreenSkeleton()),
+                  SliverToBoxAdapter(
+                    child: ArtistScreenSkeleton(
+                      showCoverHeader:
+                          (_headerImageUrl ??
+                              widget.headerImageUrl ??
+                              widget.coverUrl) ==
+                          null,
+                    ),
+                  ),
                 if (_error != null)
                   SliverToBoxAdapter(
                     child: Padding(

lib/widgets/animation_utils.dart

@@ -443,11 +443,13 @@ class GridSkeleton extends StatelessWidget {
 class ArtistScreenSkeleton extends StatelessWidget {
   final int popularCount;
   final int albumCount;
+  final bool showCoverHeader;
 
   const ArtistScreenSkeleton({
     super.key,
     this.popularCount = 5,
     this.albumCount = 5,
+    this.showCoverHeader = true,
   });
 
   @override
@@ -459,11 +461,13 @@ class ArtistScreenSkeleton extends StatelessWidget {
         child: Column(
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
-            SkeletonBox(
-              width: screenWidth,
-              height: screenWidth * 0.75,
-              borderRadius: 0,
-            ),
+            if (showCoverHeader) ...[
+              SkeletonBox(
+                width: screenWidth,
+                height: screenWidth * 0.75,
+                borderRadius: 0,
+              ),
+            ],
             Padding(
               padding: const EdgeInsets.fromLTRB(16, 16, 16, 4),
               child: SkeletonBox(width: 180, height: 24, borderRadius: 4),