In this PR,
- current basic E2E tests are fixed, and some were added, covering some
basic scenarios
- some tests avec been commented out, until we decide whether they are
worth fixing
The next steps are
- evaluate the flakiness of the tests. Once they've proved not to be
flaky, we should add more tests + re-write the current ones not using
aria-label (cf @lucasbordeau indication).
- We will add them back to the development flow
Continuation of #6644
Now chromium browser is used in workspaces tests instead of firefox and
screenshots after each test are properly saved in one folder when run
from IDE and from terminal using `yarn test:e2e` command
