Refine offline mode UX for unavailable tracks and playlist filters

- Remove wifi-off icon from unavailable tracks in playlist detail view,
  keeping only the disabled styling for a cleaner look
- Rename "Available Offline" filter to "Fully Available Offline" to
  clarify it shows only playlists where all tracks are available
- Update filter logic to only show all_local playlists in the fully
  available filter, not partially available ones
- Fix visible filter in offline mode to respect showPartialPlaylists
  setting by using isPlaylistAvailableOffline function

src/lib/components/views/PlaylistDetailView.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-  import { ArrowLeft, Play, Shuffle, ListMusic, Search, X, ChevronDown, ChevronRight, ImagePlus, Edit3, BarChart2, WifiOff } from 'lucide-svelte';
+  import { ArrowLeft, Play, Shuffle, ListMusic, Search, X, ChevronDown, ChevronRight, ImagePlus, Edit3, BarChart2 } from 'lucide-svelte';
   import AlbumMenu from '../AlbumMenu.svelte';
   import PlaylistCollage from '../PlaylistCollage.svelte';
   import PlaylistModal from '../PlaylistModal.svelte';
@@ -910,11 +910,6 @@
           class:unavailable={!available}
           title={!available ? $t('offline.trackNotAvailable') : undefined}
         >
-          {#if !available && !track.isLocal}
-            <div class="unavailable-indicator" title={$t('offline.trackNotAvailable')}>
-              <WifiOff size={12} />
-            </div>
-          {/if}
           <TrackRow
             trackId={track.isLocal ? undefined : track.id}
             number={idx + 1}
@@ -1494,14 +1489,4 @@
     filter: grayscale(100%);
   }
 
-  .unavailable-indicator {
-    position: absolute;
-    left: 0;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    width: 20px;
-    color: var(--text-muted);
-  }
-
 </style>

src/lib/components/views/PlaylistManagerView.svelte

@@ -129,10 +129,10 @@
     if (offlineStatus.isOffline) {
       // In offline mode, use offline-specific filters
       if (filter === 'offline_all' || filter === 'all') {
-        // Show all playlists with ANY local content (full or partial)
+        // Show only playlists where ALL tracks are available offline
         result = result.filter(p => {
           const localStatus = getLocalContentStatus(p.id);
-          return localStatus === 'all_local' || localStatus === 'some_local';
+          return localStatus === 'all_local';
         });
       } else if (filter === 'offline_partial') {
         // Show only playlists with partial local content
@@ -149,8 +149,7 @@
       } else if (filter === 'visible') {
         result = result.filter(p => {
           const settings = playlistSettings.get(p.id);
-          const localStatus = getLocalContentStatus(p.id);
-          return !settings?.hidden && (localStatus === 'all_local' || localStatus === 'some_local');
+          return !settings?.hidden && isPlaylistAvailableOffline(p.id);
         });
       } else if (filter === 'hidden') {
         result = result.filter(p => playlistSettings.get(p.id)?.hidden);

src/lib/i18n/locales/en.json

@@ -482,7 +482,7 @@
     "startWithoutLogin": "Start in offline mode without logging in",
     "noNetworkToast": "No internet connection available",
     "checkingNetwork": "Checking network connection...",
-    "available": "Available Offline",
+    "available": "Fully Available Offline",
     "partiallyAvailable": "Partially Available",
     "notAvailableOffline": "Not Available Offline",
     "viewOnly": "View Only (Offline)",

src/lib/i18n/locales/es.json

@@ -482,7 +482,7 @@
     "startWithoutLogin": "Iniciar en modo offline sin autenticacion",
     "noNetworkToast": "No hay conexion a internet disponible",
     "checkingNetwork": "Verificando conexion a internet...",
-    "available": "Disponible Offline",
+    "available": "Totalmente Disponible Offline",
     "partiallyAvailable": "Parcialmente Disponible",
     "notAvailableOffline": "No Disponible Offline",
     "viewOnly": "Solo Ver (Offline)",