Add Bulgarian (bg), Central Kurdish (ckb), Interlingua (ia), Tatar (tt) locales to Fenix

[Delphine]

Added Bulgarian (bg), Central Kurdish (ckb), Interlingua (ia), Tatar (tt)
Please add for v90 release

[codecov-commenter]

Codecov Report

Merging #19711 (41595bf) into master (b1f7b04) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master   #19711      +/-   ##
============================================
- Coverage     35.43%   35.42%   -0.02%     
+ Complexity     1649     1646       -3     
============================================
  Files           545      545              
  Lines         22048    22021      -27     
  Branches       3272     3263       -9     
============================================
- Hits           7812     7800      -12     
+ Misses        13330    13324       -6     
+ Partials        906      897       -9     

Impacted Files	Coverage Δ
...rg/mozilla/fenix/settings/account/AccountUiView.kt	34.14% <0.00%> (-2.44%)	⬇️
...c/main/java/org/mozilla/fenix/home/HomeFragment.kt	2.38% <0.00%> (-1.00%)	⬇️
...in/java/org/mozilla/fenix/perf/NavGraphProvider.kt	62.50% <0.00%> (ø)
...components/toolbar/BrowserToolbarMenuController.kt	61.27% <0.00%> (+0.49%)	⬆️
.../main/java/org/mozilla/fenix/theme/ThemeManager.kt	50.00% <0.00%> (+8.53%)	⬆️
...java/org/mozilla/fenix/perf/PerformanceInflater.kt	95.00% <0.00%> (+15.00%)	⬆️

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