UI fixes to align locked provider chip with mocks, handle empty credential...

UI fixes to align locked provider chip with mocks, handle empty credential type display names, and handle empty credential lists

TODO(b/337078208): need to start-align multi credentials screen text that is not in chips

Bug: b/322647040
Test: Manual, went through UX review, not too different from go/credential-selector-ui
Change-Id: I5347284f0b2fcd4f0cc268d4882cd5fcb8aa3681