web: fix broken search on application library
This is *mortifying*. I didn't test this well enough, and apparently
broke it again once I'd tested it. This patch restores the original
behavior ("no match" means "just show everything"), and fixes a
small bit of semantic lint -- the "search" feature should not be
assigning meaning to what it finds; it's enough to pass back the
prioritized list to whatever client wanted it, and let the client
decide what to do with it.
7c43c1a05b