do not show me mismatched hashtags when I search

_what happens_

In some cases, when I search for a particular hashtag such as #health I see hashtags like e.g. damus that do not match my search

_suggestion_

do not show suggested hashtags that do not match my search.

_improves on_
https://github.com/damus-io/damus/pull/2604

@scoder1747 

https://github.com/user-attachments/assets/b354e453-6c7b-459f-aec8-4ba6162fcce5