feat: add slot to extend the profile fields [Backport #1211]

[bra-i-am]

Description

This PR intends to backport #1211 to the Teak release

How Has This Been Tested?

Please follow the instructions from #1211 to test it

Screenshots:

Before	After

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[bra-i-am]

hey @brian-smith-tcril, could you please help me review this? It is just the backport of the slot for additional profile fields to Teak

Thank you so much for your help!

[codecov]

Codecov Report

❌ Patch coverage is 20.00000% with 24 lines in your changes missing coverage. Please review.
✅ Project coverage is 65.23%. Comparing base (9516ee0) to head (631d36d).

Files with missing lines	Patch %	Lines
...lots/AdditionalProfileFieldsSlot/example/index.jsx	0.00%	23 Missing ⚠️
...plugin-slots/AdditionalProfileFieldsSlot/index.jsx	85.71%	1 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff                @@
##           release/teak    #1294      +/-   ##
================================================
- Coverage         66.82%   65.23%   -1.59%     
================================================
  Files                51       53       +2     
  Lines               856      886      +30     
  Branches            176      181       +5     
================================================
+ Hits                572      578       +6     
- Misses              273      297      +24     
  Partials             11       11              

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