hover fixes

frontend/src/app/components/create-group/create-group.component.css

@@ -22,7 +22,7 @@
   border-radius: 4px;
 }
 
-#faculties li:hover, #modules li:hover, #groups li:hover {
+#faculties li:hover, #modules li:hover {
   background-color: palegreen;
   left: .1em;
 }
@@ -31,7 +31,7 @@
   background-color: darkseagreen;
 }
 
-#faculties li.selected:hover, #modules li.selected.hover , #groups li.selected:hover {
+#faculties li.selected:hover, #modules li.selected.hover {
   background-color: darkseagreen;
 }
 

frontend/src/app/components/create-group/create-group.component.html

@@ -19,9 +19,7 @@
   </div>
   <div *ngIf="selectedModule">
     <ul id="groups">Gruppen
-      <li *ngFor="let group of groups"
-          [class.selected]="group === selectedGroup"
-          (click)="onSelectGroup(group)">
+      <li *ngFor="let group of groups">
         <span class="badge">{{group.id}}</span> {{'Gruppe'}}
       </li>
     </ul>

frontend/src/app/types/groupDO.ts

 export class GroupDO {
 
-  private id: number;
-  private modulid: number;
-  private status: string;
-  private date: string;
+  id: number;
+  modulid: number;
+  status: string;
+  date: string;
 
   constructor(private iD: number, private moduleId:
               number, private statuS: string, datE: string) {

frontend/src/app/types/modulesDO.ts

 export class ModulesDO {
 
-  private id: number;
+  id: number;
   titel: string;
 
   get getId(): number {