improve(dashboards): use same vert. and hor. spacing between section
improve(dashboards): use same vert. and hor. spacing between section

Related to CAM-7038

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