chg: [refactor] simplify user roles, enforce scopes in ui accordinly

[righel]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 94.50000% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.42%. Comparing base (7bf6a3b) to head (4cc6ebc).
⚠️ Report is 18 commits behind head on main.

Files with missing lines	Patch %	Lines
api/app/repositories/sharing_groups.py	23.07%	10 Missing ⚠️
api/app/models/user.py	80.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #249      +/-   ##
==========================================
+ Coverage   75.32%   75.42%   +0.10%     
==========================================
  Files         142      144       +2     
  Lines       10265    10240      -25     
==========================================
- Hits         7732     7724       -8     
+ Misses       2533     2516      -17     

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