chore: remove unused CSS selectors from Svelte components

Clean up dead CSS that remained after HTML refactors:
- NowPlayingBar, Sidebar, PlaylistManagerView, FavoritesView
- PlaylistModal, LocalLibraryView, PlaylistDetailView
- Dropdown, MigrationModal, AlbumCard, QualityBadge
- SearchPlaylistCard, LocalLibraryTagEditorModal
- TrackReplacementModal, ImmersiveHeader, SuggestionsPanel
- LyricsFocusPanel, ExpandedPlayer, FocusMode
- ArtistDetailView, SearchView, SettingsView

src/lib/components/views/FavoritesView.svelte

@@ -2314,11 +2314,6 @@
     min-width: 240px;
   }
 
-  .search-icon-inline {
-    color: var(--text-muted);
-    flex-shrink: 0;
-  }
-
   .search-input-inline {
     flex: 1;
     background: none;
@@ -2478,62 +2473,12 @@
     font-weight: 600;
   }
 
-  .search-container {
-    display: flex;
-    align-items: center;
-    gap: 8px;
-    background-color: var(--bg-tertiary);
-    border-radius: 8px;
-    padding: 8px 12px;
-    flex: 1;
-    max-width: 300px;
-  }
-
-  .search-container :global(.search-icon) {
-    color: var(--text-muted);
-    flex-shrink: 0;
-  }
-
-  .search-input {
-    flex: 1;
-    background: none;
-    border: none;
-    color: var(--text-primary);
-    font-size: 14px;
-    outline: none;
-  }
-
-  .search-input::placeholder {
-    color: var(--text-muted);
-  }
-
-  .search-clear {
-    background: none;
-    border: none;
-    color: var(--text-muted);
-    cursor: pointer;
-    padding: 2px;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-  }
-
-  .search-clear:hover {
-    color: var(--text-primary);
-  }
-
   .results-count {
     margin-left: auto;
     font-size: 13px;
     color: var(--text-muted);
   }
 
-  .actions {
-    display: flex;
-    align-items: center;
-    gap: 12px;
-  }
-
   .context-menu-wrapper {
     position: relative;
   }
@@ -2633,11 +2578,6 @@
     margin-top: 8px;
   }
 
-  .track-list {
-    display: flex;
-    flex-direction: column;
-  }
-
   .track-sections {
     display: flex;
     gap: 12px;
@@ -2658,42 +2598,6 @@
     overflow: hidden;
   }
 
-  .track-group-list {
-    flex: 1;
-    display: flex;
-    flex-direction: column;
-    gap: 24px;
-  }
-
-  .track-group {
-    display: flex;
-    flex-direction: column;
-    gap: 12px;
-  }
-
-  .track-group-header {
-    display: flex;
-    align-items: baseline;
-    justify-content: space-between;
-    gap: 12px;
-  }
-
-  .track-group-title {
-    font-size: 14px;
-    font-weight: 600;
-    color: var(--text-primary);
-  }
-
-  .track-group-subtitle {
-    font-size: 12px;
-    color: var(--text-muted);
-  }
-
-  .track-group-count {
-    font-size: 12px;
-    color: var(--text-muted);
-  }
-
   .album-grid {
     display: flex;
     flex-wrap: wrap;