impr(dates): set default date format to ISO
impr(dates): set default date format to ISO

Related to CAM-3475

xlinur/camunda-bpm-webapp,nagyistoce/camunda-cockpit-ui,xlinur/camunda-bpm-webapp,tcrossland/camunda-bpm-webapp,TitanUser/camunda-bpm-webapp,TitanUser/camunda-bpm-webapp,tcrossland/camunda-bpm-webapp,nagyistoce/camunda-cockpit-ui,xlinur/camunda-bpm-webapp,TitanUser/camunda-bpm-webapp,tcrossland/camunda-bpm-webapp