[Fixes #12815] Add Recaptcha support for GeoNode Sign-In Form

[cmotadev]

Checklist

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[codecov]

Codecov Report

Attention: Patch coverage is 21.05263% with 15 lines in your changes missing coverage. Please review.

Project coverage is 64.13%. Comparing base (d691d75) to head (1922140).
Report is 1 commits behind head on 4.4.x.

Additional details and impacted files

@@            Coverage Diff             @@
##            4.4.x   #12825      +/-   ##
==========================================
- Coverage   64.17%   64.13%   -0.04%     
==========================================
  Files         889      890       +1     
  Lines       53760    53769       +9     
  Branches     6629     6629              
==========================================
- Hits        34500    34487      -13     
- Misses      17751    17766      +15     
- Partials     1509     1516       +7     

[mattiagiupponi]

HI @cmotadev it will be possible for you to open the same PR to the master branch too?

[cmotadev]

HI @cmotadev it will be possible for you to open the same PR to the master branch too?

Done!