e2e tests: Add Automated testing for "Projects Overview Scenario"

See scenario video in chat if you don't know the scenario well.
See the headlamp e2e app tests, and parent issue for more instructions.

- [ ] e2e test that runs locally
- [ ] Make sure a11y is enabled in each playwright tests like Headlamp
- [ ] e2e test that runs ok in CI

Start by finding the Headlamp e2e app tests and the parent issue referenced in the description; the scenario video is said to be in chat but is not included here. Use those references to determine the Projects Overview flow, then run the Playwright test locally and in CI, confirming accessibility is enabled in each test.

Written by the indexing model from the issue text.