UNDO button for deleting queries

[masonmcelvain]

When a user deletes a query, we could delay the deletion by 10 seconds (some fixed amount of time) and display a small pop up that confirms the phrase is deleted, and offers a button for the user to undo that deletion.

"Phrase deleted. UNDO"

Instead of deleting and undoing the phrase (which is hard), the cancel the requested deletion before it is even completed (ie cancel it within that 10 second window).

Problems to watch out for: If we fetch more queries immediately after a deletion is requested, we need to make sure that the deleted query isn't included in that fetch.

This approach could also be used for submitting queries as well.

Inspiration from Gmail and Outlook email deletion pop-ups.

[Waidhoferj]

It'd be cool if we could also map this to control + z