Revert "style: remove z-index to #header and #splash to not hide datepicker dialogs"
This reverts commit e070536dd41521ab7edcf2e322362cc967ce8c43.
Revert "style: remove z-index to #header and #splash to not hide datepicker dialogs"
This reverts commit e070536dd41521ab7edcf2e322362cc967ce8c43.