Fixed the build and user login

.docs/changelog.md

...o-auth-service/listeners/target/create-event-listener.jar

...rvice/src/main/java/at/tuwien/endpoints/UserEndpoint.java

...src/main/java/at/tuwien/handlers/ApiExceptionHandler.java

...c/test/java/at/tuwien/endpoints/UserEndpointUnitTest.java

...test/java/at/tuwien/handlers/ApiExceptionHandlerTest.java

...rc/test/java/at/tuwien/mvc/PrometheusEndpointMvcTest.java

...st/java/at/tuwien/service/UserServicePersistenceTest.java

.../src/test/java/at/tuwien/service/UserServiceUnitTest.java

...services/src/main/java/at/tuwien/service/UserService.java

...src/main/java/at/tuwien/service/impl/UserServiceImpl.java

dbrepo-ui/components/user/UserToolbar.vue

dbrepo-ui/pages/user/authentication.vue

helm/dbrepo/files/create-event-listener.jar

make/build.mk