Search experience imrovements

[Merrit]

There are some things about the search UX that need improvements:

• When in search results, Ctrl + F should refocus and select search text
• After selecting an emoji from a search, the search UI should be dismissed

[AleMunin]

I think the UI not going away is because if you want it to be dismissed, they're expecting you to go to settings, where the app closes after you select something.

CTRL+F does work for me.