As controller connections are not fully restored via
AutomatableModel::loadSettings(), a call to
ControllerConnection::finalizeConnections() is neccessary to do so.
Normally this function is called at the end when loading a project but
when the user just toggles ZASF's UI settings are saved/loaded without
finalizing connections which results in connected knobs which are not
reacting to the controller they are connected to.
Closes#544.