feat(mobile): comprehensive mobile UI overhaul (#238)

RandomMix: filters and genre mix panels collapse on mobile
- RandomAlbums / album grids: auto-fill favouring 3 columns at narrow widths
- BottomNav: More button opens a bottom sheet with remaining nav items
- MobileMoreOverlay: new sheet component with backdrop and slide-up animation
- Tracklist: mobile Title / Artist two-line stacked layout (Apple Music style)
- ArtistDetail: centred header (photo → name → buttons), icon-only buttons
  except Play All, collapsible Similar Artists (5 default), 2-column album
  grid, avatar glow derived from dominant cover colour
- Settings: fixed overflow in ReplayGain, Crossfade, mix rating filters,
  theme scheduler, and Next Track Buffering sections

Co-authored-by: kilyabin <65072190+kilyabin@users.noreply.github.com>

src/locales/de.ts

@@ -30,6 +30,7 @@ export const deTranslation = {
     allLibraries: 'Alle Bibliotheken',
     expandPlaylists: 'Playlists ausklappen',
     collapsePlaylists: 'Playlists einklappen',
+    more: 'Mehr',
   },
   home: {
     hero: 'Featured',

src/locales/en.ts

@@ -31,6 +31,7 @@ export const enTranslation = {
     allLibraries: 'All libraries',
     expandPlaylists: 'Expand playlists',
     collapsePlaylists: 'Collapse playlists',
+    more: 'More',
   },
   home: {
     hero: 'Featured',

src/locales/es.ts

@@ -31,6 +31,7 @@ export const esTranslation = {
     allLibraries: 'Todas las bibliotecas',
     expandPlaylists: 'Expandir listas',
     collapsePlaylists: 'Colapsar listas',
+    more: 'Más',
   },
   home: {
     hero: 'Destacado',

src/locales/fr.ts

@@ -30,6 +30,7 @@ export const frTranslation = {
     allLibraries: 'Toutes les bibliothèques',
     expandPlaylists: 'Développer les playlists',
     collapsePlaylists: 'Réduire les playlists',
+    more: 'Plus',
   },
   home: {
     hero: 'En vedette',

src/locales/nb.ts

@@ -30,6 +30,7 @@ export const nbTranslation = {
     allLibraries: 'Alle biblioteker',
     expandPlaylists: 'Utvid spillelister',
     collapsePlaylists: 'Skjul spillelister',
+    more: 'Mer',
   },
   home: {
     hero: 'Utvalgt',

src/locales/nl.ts

@@ -30,6 +30,7 @@ export const nlTranslation = {
     allLibraries: 'Alle bibliotheken',
     expandPlaylists: 'Afspeellijsten uitklappen',
     collapsePlaylists: 'Afspeellijsten inklappen',
+    more: 'Meer',
   },
   home: {
     hero: 'Uitgelicht',

src/locales/ru.ts

@@ -31,6 +31,7 @@ export const ruTranslation = {
     allLibraries: 'Все библиотеки',
     expandPlaylists: 'Развернуть плейлисты',
     collapsePlaylists: 'Свернуть плейлисты',
+    more: 'Ещё',
   },
   home: {
     hero: 'Подборка',

src/locales/zh.ts

@@ -30,6 +30,7 @@ export const zhTranslation = {
     allLibraries: '所有资料库',
     expandPlaylists: '展开播放列表',
     collapsePlaylists: '收起播放列表',
+    more: '更多',
   },
   home: {
     hero: '精选',