Merge ui into development

src/main/java/de/hdm_stuttgart/battlearena/Controller/CommunityMapController.java

@@ -49,7 +49,7 @@ public class CommunityMapController implements Initializable {
 //    TODO: create map preview
 
     @FXML
-    private void backButton() {   // for some reason compiler doesn't recognize method usage when 'back' is used as method name. Any other method name works however
+    private void backButton() {
         parent.getChildren().clear();
         parent.getChildren().add(new SceneLoader().loadScene("MapForge"));
     }