fix(Overlays): incorrect overlay positioning
fix(Overlays): incorrect overlay positioning

Incorrect parameter was passed into function caused incorrect overlay positioning.

bpmn-io/diagram-js,thr0w/diagram-js,tsneed290/diagram-js,pedesen/diagram-js,pedesen/diagram-js,chudaol/diagram-js,thr0w/diagram-js,tsneed290/diagram-js