FIX #14939 TIME 1 control field length in visa and user + fix mergeController + fix sql

migration/20.03/2003.sql

src/app/contentManagement/controllers/MergeController.php

.../notification/models/NotificationsEventsModelAbstract.php

src/app/user/controllers/UserController.php

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

src/frontend/app/visa/visa-workflow.component.html