feat(SW-337): logic for accesible dialog title text for lightbox

i18n/dictionaries/da.json

@@ -79,6 +79,7 @@
   "Hotel surroundings": "Hotel omgivelser",
   "How do you want to sleep?": "Hvordan vil du sove?",
   "How it works": "Hvordan det virker",
+  "Image gallery": "Billedgalleri",
   "Join Scandic Friends": "Tilmeld dig Scandic Friends",
   "km to city center": "km til byens centrum",
   "Language": "Sprog",
@@ -227,4 +228,4 @@
   "Your level": "Dit niveau",
   "Your points to spend": "Dine brugbare point",
   "Zip code": "Postnummer"
-}
+}