fix checkstyle errors

src/main/java/mops/gruppen2/security/SecurityConfig.java

@@ -47,8 +47,7 @@ class SecurityConfig extends KeycloakWebSecurityConfigurerAdapter {
     }
 
     @Bean
-    @Scope(scopeName = WebApplicationContext.SCOPE_REQUEST,
-            proxyMode = ScopedProxyMode.TARGET_CLASS)
+    @Scope(scopeName = WebApplicationContext.SCOPE_REQUEST, proxyMode = ScopedProxyMode.TARGET_CLASS)
     public AccessToken getAccessToken() {
         HttpServletRequest request =
                 ((ServletRequestAttributes) RequestContextHolder

src/main/java/mops/gruppen2/service/ControllerService.java

@@ -49,6 +49,7 @@ public class ControllerService {
      * @param title       Gruppentitel
      * @param description Gruppenbeschreibung
      */
+
     public void createGroup(Account account, String title, String description, Boolean visibility, Boolean maxInfiniteUsers, Long userMaximum, UUID parent) throws EventException {
         Visibility visibility1;
         maxInfiniteUsers = maxInfiniteUsers != null;