feat: Contribute to your country link

[jnnabugwu]

What

feat: Added a method and map to get the correct country locale for the corresponding wiki page. 

Screenshot

Fixes bug(s)

• Fixes:

Part of

• 🎯 What can I work on ? #525

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 26.66667% with 11 lines in your changes missing coverage. Please review.

Project coverage is 6.85%. Comparing base (4d9c7fc) to head (eca3816).
Report is 481 commits behind head on develop.

Files with missing lines	Patch %	Lines
...pages/preferences/user_preferences_contribute.dart	26.66%	11 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           develop   #5874      +/-   ##
==========================================
- Coverage     9.54%   6.85%   -2.70%     
==========================================
  Files          325     428     +103     
  Lines        16411   23598    +7187     
==========================================
+ Hits          1567    1617      +50     
- Misses       14844   21981    +7137     

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