fix: language with dialects are not downloading

[initishbhatt]

fixes #306 and #304

[andrii-bodnar]

@initishbhatt thanks a lot for the contribution! 🚀

Requesting a review from @MykhailoNester.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 57.47%. Comparing base (721fb02) to head (19aef7f).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #312   +/-   ##
=========================================
  Coverage     57.47%   57.47%           
  Complexity      376      376           
=========================================
  Files            58       58           
  Lines          2055     2055           
  Branches        325      325           
=========================================
  Hits           1181     1181           
  Misses          655      655           
  Partials        219      219           

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