feat: queue improvements, system browser links (v1.4.5)

- Queue: year added to now-playing meta, cover enlarged to 90px + top-aligned, default width 340px
- Artist pages: Last.fm/Wikipedia open in system browser with button label feedback
- README: AUR badge + install section, Nord theme mention, in-app browser bullet removed

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

src/i18n.ts

@@ -120,6 +120,7 @@ const enTranslation = {
     favorite: 'Favorite',
     albumCount_one: '{{count}} Album',
     albumCount_other: '{{count}} Albums',
+    openedInBrowser: 'Opened in browser',
   },
   favorites: {
     title: 'Favorites',
@@ -539,6 +540,7 @@ const deTranslation = {
     favorite: 'Als Favorit',
     albumCount_one: '{{count}} Album',
     albumCount_other: '{{count}} Alben',
+    openedInBrowser: 'Im Browser geöffnet',
   },
   favorites: {
     title: 'Favoriten',