ui: Adds ability to search by policy, role or service ident names

[johncowen]

This PR adds the ability to search by Role or ServiceIdentity name to the Token listings page, and the ability to search by Policy or ServiceIdentity name to the Role listings page.

(You could already search by policies on the token listing page)

This functionality will potentially be replaced by a new search UI in the future, which will make this far nicer for users to use.

[DingoEatingFuzz]

Should there be new acceptance tests for these?

[johncowen]

Hey @DingoEatingFuzz

Thanks for taking a look!

I added a ton of new unit and acceptance tests around this. Originally we were trying to get the feature shipped in 1.5, hence we skipped these to revisit after release as at the time as we were fairly confident this feature was good. I may have gone a bit overboard with tests here, but definitely worthwhile getting some incase we regress anywhere.

There are a few other PRs that made it but I skipped tests with as the confidence was reasonably high and we wanted to ship the feature, so hopefully you'll see a few other test heavy PRs coming for regressions sake before we move forwards with other things.

Thanks,

John