Merged in fix/SW-378-footer-language-switcher (pull request #579)

fix(SW-378): Added close button to footer language switcher and made it slide up from below

Approved-by: Fredrik Thorsson
Approved-by: Matilda Landström

i18n/dictionaries/en.json

@@ -104,6 +104,7 @@
   "Log in here": "Log in here",
   "Log in/Join": "Log in/Join",
   "Log out": "Log out",
+  "Main menu": "Main menu",
   "Manage preferences": "Manage preferences",
   "Map": "Map",
   "Map of HOTEL_NAME": "Map of {hotelName}",