Merge pull request 'migrated db' (#558) from migrated-db into main

Reviewed-on: #558

staging-diff.sql

@@ -1,5 +1,3 @@
-update role set name='manage_events' where id=19;
-
 -- test user
 INSERT INTO user(name) VALUES('Marie');
 INSERT INTO "user_role" (user_id, role_id) VALUES((SELECT id from user where name = 'Marie'),(SELECT id FROM role where name = 'Donau Linz'));