core: frontend: "remove logs" does not give any feedback

[eldinmiller]

Current behaviour

When deleting a log, there is no feedback that the logs are being deleted. The window closes, but when opened again, the logs still appear there, confusing the user.

Expected or desired behaviour

There should be some kind of "deleting" or "loading" thingy to let users know that the logs are deleting.

Prerequisites

• I have checked to make sure that a similar request has not already been filed or fixed.