[BZ#1951023] Add highlighting of partially-matched search terms in text-based filters throughout the UI

[mturley]

https://bugzilla.redhat.com/show_bug.cgi?id=1951023

Originally suggested by @fdupont-redhat for the Target Namespace field of the plan wizard as part of https://bugzilla.redhat.com/show_bug.cgi?id=1929731. We decided we should only do this if we do it consistently everywhere.

A basic implementation was done in f80c692 that I am reverting. We could revisit that and abstract it out into lib-ui as some kind of component like TextWithSubstringHighlight. Also, that implementation is case-sensitive, ideally we could highlight results even if they don't match the case of the search term (not an issue for k8s resources though since they cannot contain capital letters).

[mturley]

This was closed as WONTFIX in bugzilla.