Mention and Search autocomplete lists should ignore mouse position unless the mouse is moved or clicked

If you leave your mouse just above the input bar and type `@`, or just below the search bar and focus it or delete its contents, the resulting popup selection list of autocomplete suggestions will automatically select the item under the mouse cursor.

This is not the normal behavior evident in Chrome and Chromium, Slack, Atom, and other Electron apps. I think Discord should adopt the more common behavior of ignoring the mouse until it is moved or clicked in this scenario.