improve(migration): use checkboxes for linking and plan toggle
improve(migration): use checkboxes for linking and plan toggle

Related to CAM-5948

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