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/locales/fr/queue.ts

@@ -13,7 +13,7 @@ export const queue = {
   appendToQueue: 'Ajouter à la file',
   delete: 'Supprimer',
   deleteConfirm: 'Supprimer la liste « {{name}} » ?',
-  clear: 'Vider',
+  clear: 'Vider la file',
   shuffle: 'Mélanger la file',
   gapless: 'Sans blanc',
   crossfade: 'Fondu',