feat: Ajout d'une tâche

src/services/group.service.ts

@@ -3,8 +3,8 @@ import { BaseService } from './base.service';
 import { Observable } from 'rxjs';
 import { Group } from '../model/Group';
 @Service()
-export class GroupService extends BaseService{
-  public getGroups():Observable<Group[]>{
-    return this.get<Group[]>("http://127.0.0.1:8080/group");
+export class GroupService extends BaseService {
+  public getGroups(): Observable<Group[]> {
+    return this.get<Group[]>("group");
   }
 }