feat: Name project roles consistently

[MoritzWeber0]

Use the following names consistently across frontend and documentation:

• Project Administrator
• Project User
• Global Administrator

In addition, a few stories were added and parts of the frontend were rebased to comply with our code style.

[github-actions[bot]]

A Storybook preview is available for commit f0a9fefcca524f3ae65d9db90acaa8d5b36d6b90. ➡️ View Storybook ➡️ View Chromatic build 🔍 1 out of 99 snapshots have changed. Please review the changes before merging.

[github-actions[bot]]

The generated OpenAPI client is not up to date with the latest changes in the OpenAPI specification. Please run make openapi locally and commit the changes.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 84.05%. Comparing base (6b57058) to head (a6945e8). Report is 10 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1755 +/- ## ======================================= Coverage 84.04% 84.05% ======================================= Files 186 186 Lines 6137 6138 +1 Branches 675 675 ======================================= + Hits 5158 5159 +1 Misses 831 831 Partials 148 148 ```

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[github-actions[bot]]

The generated OpenAPI client is not up to date with the latest changes in the OpenAPI specification. Please run make openapi locally and commit the changes.

[sonarcloud[bot]]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud