#3957 - Cannot create project using project-creator role

- Show menubar also to project creators - this is in particular important during the creation of projects using the traditional "New project" approach
- Fix typo

inception/inception-recommendation/src/main/java/de/tudarmstadt/ukp/inception/recommendation/tasks/PredictionTask.java

@@ -111,7 +111,7 @@ public void execute()
 
             appEventPublisher.publishEvent(
                     RecommenderTaskNotificationEvent.builder(this, project, user.getUsername()) //
-                            .withMessage(LogMessage.info(this, "New preditions available")) //
+                            .withMessage(LogMessage.info(this, "New predictions available")) //
                             .build());
 
             // We reset this in case the state was not properly cleared, e.g. the AL session

inception/inception-ui-dashboard/src/main/java/de/tudarmstadt/ukp/inception/ui/core/menubar/MenuBar.java

@@ -157,10 +157,18 @@ private boolean isMenubarVisibleToCurrentUser()
             return true;
         }
 
-        if (userRepository.isAdministrator(user.getObject())) {
+        if (userRepository.isAdministrator(user.getObject())
+                || userRepository.isProjectCreator(user.getObject())) {
             return true;
         }
 
+        // The project might be null if it is in the process of being created. Normally, this can
+        // only be done by admisn and project creators that are handled above - so returning false
+        // here is really just a sanity fallback that should never kick in.
+        if (project.getObject().getId() == null) {
+            return false;
+        }
+
         var roles = dashboardProperties.getAccessibleByRoles().toArray(PermissionLevel[]::new);
         return projectService.hasRole(user.getObject(), project.getObject(), MANAGER, roles);
     }