OZG-449 change String to UserId; change default from 20 -> 40

...y-server/src/main/java/de/itvsh/goofy/RootController.java

...vsh/goofy/vorgang/FindVorgaengeHeaderRequestCriteria.java

...server/src/main/java/de/itvsh/goofy/vorgang/PageUtil.java

...c/main/java/de/itvsh/goofy/vorgang/VorgangController.java

...ain/java/de/itvsh/goofy/vorgang/VorgangRemoteService.java

goofy-server/src/main/resources/application.yml

...oofy/vorgang/FindVorgaengeRequestCriteriaTestFactory.java

...st/java/de/itvsh/goofy/vorgang/VorgangControllerTest.java

...ava/de/itvsh/goofy/vorgang/VorgangModelAssemblerTest.java

...java/de/itvsh/goofy/vorgang/VorgangRemoteServiceTest.java