feat(most-played): add toggle to filter compilation artists

Toggle button in the Top Artists section header hides known compilation
artist names (Various Artists, VA, Soundtracks, OST, etc.) from the
ranking. Default off. Active state shown in accent color.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/locales/de.ts

@@ -791,6 +791,9 @@ export const deTranslation = {
     sortLeast: 'Wenigste Plays zuerst',
     loadMore: 'Mehr Alben laden',
     noData: 'Noch keine Wiedergabedaten. Fang an zu hören!',
+    noArtists: 'Alle Künstler herausgefiltert.',
+    filterCompilations: 'Sampler-Künstler ausblenden (Various Artists, Soundtracks usw.)',
+    filterCompilationsShort: 'Sampler ausblenden',
   },
   radio: {
     title: 'Internetradio',