FIX #15259 TIME 0:10 fix css modal

...dministration/entity/entities-administration.component.ts

...ministration/entity/export/entities-export.component.html

...administration/entity/export/entities-export.component.ts

...pp/administration/user/export/users-export.component.html

.../app/administration/user/export/users-export.component.ts

...app/administration/user/users-administration.component.ts