chore: GroupsResponderADM cleanup (DEV-3292)

[mpro7]

Pull Request Checklist

Task Description/Number

Removed trait,groupsGetADM and partially groupGetADM methods, including swapping the responder with service / rest service in tests as well as affected packages. I struggle to make GroupsResponderADM removal more organized but this is the first part of it (also to keep PR relatively small).

Issue Number: DEV-3292

PR Type

• build/chore: maintenance tasks (no production code change)
• docs: documentation changes (no production code change)
• feat: represents new features
• fix: represents bug fixes
• perf: performance improvements
• refactor: represents production code refactoring
• test: adding or refactoring tests (no production code change)

Basic requirements for bug fixes and features

• Tests for the changes have been added
• Docs have been added / updated

Does this PR introduce a breaking change?

• Yes

Does this PR change client-test-data?

• Yes

[linear]

DEV-3292 Remove the `GroupsResponder`

[codecov]

Codecov Report

Attention: Patch coverage is 5.55556% with 51 lines in your changes are missing coverage. Please review.

Project coverage is 13.13%. Comparing base (62260e4) to head (8f45c7a).
Report is 13 commits behind head on main.

Files	Patch %	Lines
...bapi/slice/admin/domain/service/GroupService.scala	0.00%	21 Missing ⚠️
...api/responders/admin/PermissionsResponderADM.scala	0.00%	18 Missing ⚠️
...api/slice/admin/api/service/UsersRestService.scala	0.00%	4 Missing ⚠️
...pi/slice/admin/api/service/GroupsRestService.scala	0.00%	3 Missing ⚠️
...a/webapi/slice/admin/domain/model/KnoraGroup.scala	60.00%	2 Missing ⚠️
...a/webapi/responders/admin/GroupsResponderADM.scala	0.00%	1 Missing ⚠️
...slice/admin/domain/service/KnoraGroupService.scala	0.00%	1 Missing ⚠️
...dmin/domain/service/KnoraUserToUserConverter.scala	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #3139       +/-   ##
===========================================
- Coverage   88.79%   13.13%   -75.66%     
===========================================
  Files         265      266        +1     
  Lines       22260    22239       -21     
===========================================
- Hits        19765     2921    -16844     
- Misses       2495    19318    +16823     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[BalduinLandolt]

I mostly like it, but please remove all the throws

[BalduinLandolt]

See comment above

[mpro7]

See replay above :)