Add proposal for groups in registry

[eleftherias]

No description provided.

[JAORMX]

Overall lgtm. Waiting for samples

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 40.03%. Comparing base (a384737) to head (feb3e56).
⚠️ Report is 20 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1681      +/-   ##
==========================================
+ Coverage   39.98%   40.03%   +0.04%     
==========================================
  Files         180      180              
  Lines       20911    20911              
==========================================
+ Hits         8361     8371      +10     
+ Misses      11938    11922      -16     
- Partials      612      618       +6     

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[JAORMX]

LGTM

[coveralls]

coverage: 37.312% (+0.06%) from 37.255%
when pulling feb3e56 on groups-registry-proposal
into a384737 on main.