wip: Improve team management interface

[nfebe]

Resolves : nextcloud/circles#1944

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 64 lines in your changes missing coverage. Please review.

Project coverage is 11.01%. Comparing base (8845d22) to head (cf35aef).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/components/CircleDetails.vue	0.00%	64 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #4542      +/-   ##
============================================
+ Coverage     10.99%   11.01%   +0.01%     
  Complexity      265      265              
============================================
  Files           122      122              
  Lines          5611     5603       -8     
  Branches       1216     1209       -7     
============================================
  Hits            617      617              
+ Misses         4871     4863       -8     
  Partials        123      123              

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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.