This updates the look of the search control, adds a hint about the slash
shortcut, adds highlighting of fuzzy search results, and addresses a few
edge case UX failures. It moves to using a fork of Ember Power Select
to handle an edge case where pressing escape would put the control
in an undesirable active-but-not-open state.
This introduces a DataCaches service so recently-updated collections don’t need
to be requeried within a minute, or based on the current route. It only searches
jobs and nodes. There are known bugs that will be addressed in upcoming PRs.
