Fix escape logic for closing find tool bar in mode with editor view

E.g. open context help, press ctrl+f to search in help, press escape
(focus moves to help viewer), press escape: find tool bar should be
hidden, instead it was moving focus to the editor.

Change-Id: Ia5d8563458582e2871afd9e3107e49e71d03b3f5
Reviewed-by: Daniel Teske <daniel.teske@digia.com>