Fixes #3732 Achievements: redirecting to the proper fragment

[Anyrob]

Description
According to the location permission, it redirects from Nearby to Contribution Fragment is not granted.

Achievements: redirecting to the proper fragment.

Fixes #3732

What changes did you make and why?
Added a new function to check which fragment to use according to the location permission.

[tests-checker]

Could you please add tests to make sure this change works as expected?

[codecov-commenter]

Codecov Report

Merging #3805 into master will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@             Coverage Diff             @@
##             master   #3805      +/-   ##
===========================================
- Coverage      8.50%   8.50%   -0.01%     
  Complexity      366     366              
===========================================
  Files           309     309              
  Lines         12428   12433       +5     
  Branches        994     995       +1     
===========================================
  Hits           1057    1057              
- Misses        11302   11307       +5     
  Partials         69      69              

Impacted Files	Coverage Δ	Complexity Δ
...r/free/nrw/commons/contributions/MainActivity.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)

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[luislizarraga]

Do you have any screenshots or a gif showing the redirect?

[Anyrob]

Here's a gif showing that the map is not displayed, due to not allowing the access location.

[luislizarraga]

Thank you! Looks good :D

[luislizarraga]

Is there a way to add tests?

[Anyrob]

Hi @luislizarraga, Sure, I am currently working on it but as the first time writing a test on Android is taking me a little bit, however, at the moment I feel I have the basics, but I'm reading about it to keep trying!
I'm going to try to get it ready this week, anything I keep you up to date :)

[neslihanturan]

Thanks a lot @Anyrob . Great job! But after #3891 will be merged, I think this changes will be irrelevant with the code base, unfortunately :(