refs https://linear.app/tryghost/issue/ENG-676/
Now we have the case that there is no filter param, the simple string
approach fails. Instead we build up a URLSearchParams object which
makes it easier to handle conditional params & stringify it at the end.
refs https://github.com/TryGhost/Product/issues/3504
- When you are logged in as an admin, but not as a member, no buttons
showed (discovered in new e2e tests)
- Added E2E tests for admin actions
refs https://github.com/TryGhost/Team/issues/3504
This migrates comments-ui to TypeScript. Only `App.js` is left to
migrate, but since this isn't using hooks yet, it will need a bigger
rewrite so this will need to happen in a separate PR.
