fix(decision-pges): set initial height instead of minimal height
fix(decision-pges): set initial height instead of minimal height

Related to CAM-6330

TitanUser/camunda-bpm-webapp,TitanUser/camunda-bpm-webapp,xlinur/camunda-bpm-webapp,xlinur/camunda-bpm-webapp,TitanUser/camunda-bpm-webapp,xlinur/camunda-bpm-webapp