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

i18n/dictionaries/sv.json

@@ -80,6 +80,7 @@
   "hotelPages.rooms.roomCard.persons": "personer",
   "How do you want to sleep?": "Hur vill du sova?",
   "How it works": "Hur det fungerar",
+  "Image gallery": "Bildgalleri",
   "Join Scandic Friends": "Gå med i Scandic Friends",
   "km to city center": "km till stadens centrum",
   "Language": "Språk",
@@ -228,4 +229,4 @@
   "Your level": "Din nivå",
   "Your points to spend": "Dina spenderbara poäng",
   "Zip code": "Postnummer"
-}
+}