Merge branch 'main' into exp/orbit (pre-PR sync)

Conflicts resolved in:
- src/pages/SearchResults.tsx
- src/pages/AdvancedSearch.tsx

Both pages were rewritten on main (PR #303) to use the shared
<SongRow> component with click-to-enqueueAndPlay semantics. Orbit's
playSong helper that branched on orbit-active is no longer needed
at the page level — instead, orbit awareness moved INTO SongRow and
SongCard themselves: in an active orbit session both buttons collapse
into addTrackToOrbit (suggest for guests, host-enqueue for the host)
so we don't ship a queue replacement to every guest.

Also kept main's IntersectionObserver-based pagination on both pages.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/locales/nb.ts

@@ -21,6 +21,7 @@ export const nbTranslation = {
     cancelDownload: 'Avbryt nedlasting',
     offlineLibrary: 'Frakoblet bibliotek',
     genres: 'Sjangere',
+    tracks: 'Spor',
     playlists: 'Spillelister',
     mostPlayed: 'Mest spilt',
     radio: 'Internettradio',
@@ -40,6 +41,7 @@ export const nbTranslation = {
     mostPlayed: 'Mest spilt',
     recentlyPlayed: 'Nylig spilt',
     discover: 'Oppdag',
+    discoverSongs: 'Oppdag spor',
     loadMore: 'Last inn flere',
     discoverMore: 'Oppdag flere',
     discoverArtists: 'Oppdag artister',
@@ -378,6 +380,20 @@ export const nbTranslation = {
     offlineQueuing: 'Legger {{count}} album i kø for offline…',
     offlineFailed: 'Kunne ikke legge til {{name}} offline',
   },
+  tracks: {
+    title: 'Spor',
+    subtitle: 'Bla. Søk. Oppdag.',
+    heroEyebrow: 'Sporet akkurat nå',
+    heroReroll: 'Velg et annet',
+    playSong: 'Spill av',
+    enqueueSong: 'Legg til i kø',
+    railRandom: 'Tilfeldig valg',
+    browseTitle: 'Bla gjennom alle spor',
+    browseUnsupported: 'Denne tjeneren lister ikke hele biblioteket på én gang. Bruk søket ovenfor for å finne bestemte spor.',
+    searchPlaceholder: 'Finn et spor etter tittel, artist eller album…',
+    count_one: '{{count}} spor',
+    count_other: '{{count}} spor',
+  },
   artists: {
     title: 'Artister',
     search: 'Søk…',