refactor(css): consolidate track-view layout and card text color rules; switch genre chip to Outlined variant

DeepDrftPublic.Client/Pages/TracksView.razor

@@ -2,7 +2,7 @@
 
 <PageTitle>DeepDrft Track Gallery</PageTitle>
 
-<div class="tracks-page-wrapper">
+<div>
     <div class="tracks-view-container">
         @if (ViewModel.Page != null)
         {

DeepDrftPublic.Client/Pages/TracksView.razor.css

@@ -1,26 +1,20 @@
-.tracks-page-wrapper {
-    display: flex;
-    flex-direction: column;
-}
+/* Layout for the tracks page.
+   Dead flex/height rules removed — the sticky-footer intent they encoded required
+   a height target that was never set; normal block flow is sufficient for a
+   paginated gallery. Horizontal inset is owned by MudContainer in TracksGallery. */
 
 .tracks-view-container {
-    display: flex;
-    flex-direction: column;
-    flex: 1;
-    padding: 0 16px; /* Horizontal padding only */
+    padding: 0;
 }
 
 .tracks-content {
-    display: flex;
-    flex-grow: 1;
     padding-top: 16px;
 }
 
 .tracks-footer {
-    flex: 0 0;
     padding: 8px 0;
     display: flex;
     flex-direction: column;
     align-items: center;
     gap: 16px;
-}
+}