Fix UI problem in system language list

 - "Add a language" can not show "language" during font and display size
   turn into the biggest.
 - This is due to view hight limited, change to wrap content for
   solution.

Bug: b/275661390
Test: Manual test.
Change-Id: I306e09a92f3a9e047e6ab9a484e0b60f2b86cc62