Idea: support deleting suggestions/history

[nathanwchan]

The "suggestions for you" list of users in the search page is front-and-center, and currently partly reflects your search history, existing visits, and users you're following. Sometimes you accidentally click on a profile that you didn't care about, which means that that profile will get bumped/inserted to the top of the list on next app-startup. I personally would like the ability to remove those users from the list, just so I don't have to see them again. Not sure if others feel the same.

Technical details: I think we could keep the list intact in Twitter, and just delete the Realm entry in the DB