✨(frontend) add settings quick access from device controls

Enable opening settings dialog directly from device controls while
inside a conference for quick access to device configuration.

Improves UX by providing immediate settings access without
enhancing convenience during meetings.

Requested by users.

src/frontend/src/locales/nl/rooms.json

@@ -11,6 +11,7 @@
     "loading": "Bezig met laden…",
     "select": "Selecteer een waarde",
     "permissionsNeeded": "Toestemming vereist",
+    "settings": "Instellingen",
     "videoinput": {
       "choose": "Selecteer camera",
       "permissionsNeeded": "Selecteer camera - Toestemming vereist",