warn users if they may be accidently searching literally for quotes

Created by: slimsag

This is an issue that is hindering my personal workflow and happens to me multiple times a day even though I "know" it is the new behavior it still trips me up constantly. I fear our users will experience the same pain, and a fix was simple enough so I went ahead and implemented this.

If you have performed a search literally and it contains quotes, we now display a note that the quotes are also being interpreted literally to help users like myself who are used to "quoting" everything for literal search:

And the more common case, how it looks when there are no results at all:

Fixes #6016 (closed)

Test plan: Manual + existing e2e tests