feat(settings): dim disabled toggle rows + rename Clear → Clear queue (#778)

* feat(settings): dim disabled toggle rows + rename Clear → Clear queue

* Settings toggle rows (`.settings-toggle-row`, `.sidebar-customizer-row`) dim
  their non-toggle content to 0.6 opacity when the switch is off. Driven by a
  single `:has(.toggle-switch input:not(:checked):not(:disabled))` rule so it
  applies across every Settings tab without per-row markup. Mutex-disabled
  toggles (Crossfade/Gapless) are excluded to avoid stacking with the existing
  inline 0.45 dim on their row.
* Queue toolbar "Clear" button now reads "Clear queue" in all 9 locales for
  parity with "Shuffle queue" and to distinguish from playlist clear/delete.

Adopted from @kveld9's PR #558 — cherry-picked the spirit, rewrote the dim as
a single global selector instead of three inline-styled customizer rows, and
extended the rename to the Romanian locale that landed after #558 was opened.

Co-Authored-By: kveld9 <179108235+kveld9@users.noreply.github.com>

* docs(changelog,credits): credit @kveld9 for #778

Co-Authored-By: kveld9 <179108235+kveld9@users.noreply.github.com>

---------

Co-authored-by: kveld9 <179108235+kveld9@users.noreply.github.com>

src/config/settingsCredits.ts

@@ -176,6 +176,7 @@ const CONTRIBUTOR_ENTRIES = [
       'Playlist page layout — per-element visibility toggles (Add Songs, Import CSV, Download ZIP, Cache Offline, Suggestions) under Settings → Personalisation (PR #556)',
       'Player bar layout — per-control visibility toggles (Star rating, Favorite, Last.fm love, Equalizer, Mini player) under Settings → Personalisation (PR #627)',
       'Queue panel — persist header duration mode (total / remaining / ETA) across app restarts (PR #625)',
+      'Settings: dim disabled toggle rows; Queue toolbar "Clear" → "Clear queue" rename across 9 locales (adopted from PR #558, rewritten in PR #778)',
     ],
   },
   {