Fixed T28492 PACS interaction getting stuck from modifier keys

Summary: Fix the display interaction statemachine getting stuck in certain states when a combination of button press and modifier key bring it there, but the modifier is let go before the mouse button, by adding a general reset-transition to go back to the start state when no modifiers or buttons are pressed

Test Plan: See description of T28492

Reviewers: O1 MITK Reviewer Group I, kalali

Reviewed By: O1 MITK Reviewer Group I, kalali

Subscribers: kalali

Maniphest Tasks: T28492

Differential Revision: https://phabricator.mitk.org/D527