theme overlay is one plain rotation, favourites in place, tab toggles a favourites filter

src/apps/officer-web/locales/en-GB.json

@@ -494,7 +494,7 @@
     "addToFavouritesKey": "Add to favourites (f)",
     "removeFromFavouritesKey": "Remove from favourites (f)",
     "active": "active",
-    "browseHint": "j/k or ↑/↓ move · l or → preview · f star · h or ← reset · enter keep · esc cancel"
+    "browseHint": "j/k or ↑/↓ move · l or → preview · f star · tab favourites · h or ← reset · enter keep · esc cancel"
   },
   "spotlight": {
     "placeholder": "Go to…",