refactor: Simplify GroupStatus model

[seakayone]

Pull Request Checklist

Task Description/Number

Issue Number: NO-TICKET

Basic Requirements

Please check if your PR fulfills the following requirements:

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• fix: represents bug fixes
• refactor: represents production code refactoring
• feat: represents a new feature
• docs: documentation changes (no production code change)
• chore: maintenance tasks (no production code change)
• test: all about tests: adding, refactoring tests (no production code change)
• other... Please describe:

Does this PR introduce a breaking change?

• Yes
• No
• Maybe (not 100% sure => check with FE)

Does this PR change client-test-data?

• Yes (don't forget to update the JS-LIB team about the change)
• No

[codecov]

Codecov Report

Patch coverage: 23.00% and project coverage change: -8.47 ⚠️

Comparison is base (12402f3) 18.00% compared to head (019d496) 9.53%.

❗ Current head 019d496 differs from pull request most recent head 665dbcb. Consider uploading reports for the commit 665dbcb to get more accurate results

Additional details and impacted files

@@            Coverage Diff            @@
##             main   #2741      +/-   ##
=========================================
- Coverage   18.00%   9.53%   -8.47%     
=========================================
  Files         281     281              
  Lines       28899   28879      -20     
=========================================
- Hits         5202    2755    -2447     
- Misses      23697   26124    +2427     

Impacted Files	Coverage Δ
...main/scala/org/knora/webapi/config/AppConfig.scala	85.29% <ø> (-1.55%)	⬇️
...c/main/scala/org/knora/webapi/core/AppRouter.scala	0.00% <ø> (-100.00%)	⬇️
...c/main/scala/org/knora/webapi/core/AppServer.scala	0.00% <0.00%> (-86.77%)	⬇️
...sponder/projectsmessages/ProjectsPayloadsADM.scala	0.00% <0.00%> (ø)
...tore/triplestoremessages/TriplestoreMessages.scala	18.18% <0.00%> (-35.61%)	⬇️
...esponder/ontologymessages/OntologyMessagesV2.scala	2.63% <ø> (-3.61%)	⬇️
...scala/org/knora/webapi/responders/IriService.scala	0.00% <0.00%> (-69.24%)	⬇️
...a/webapi/responders/admin/GroupsResponderADM.scala	0.00% <0.00%> (-16.49%)	⬇️
...api/responders/admin/PermissionsResponderADM.scala	0.00% <0.00%> (-30.87%)	⬇️
...a/webapi/responders/admin/StoresResponderADM.scala	0.00% <0.00%> (-33.34%)	⬇️
... and 26 more

... and 78 files with indirect coverage changes

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[mpro7]

Looks good. You've just omitted tests in GroupsResponderADMSpec which failed. Please fix them before merge.