Web Client: isolate tests #1611
Description
After updating the client to the latest version of node & base (#1570) changes were made client/datastore setup in tests, showing that the same DB is shared accross all tests, leading to errors.
We should try to isolate each test context as much as possible, beggining by making each test use their separate DB.
Maybe we can use these two items from playwright's docs to properly do this:
https://playwright.dev/docs/api/class-test#test-before-each
https://playwright.dev/docs/api/class-test#test-extend