Removed some old models and adjusted the component accordingly

src/models.ts

@@ -3,17 +3,8 @@ export interface ptpUser {
   firstName: string;
   lastName: string;
   username: string;
-  status?: string;
-  profilePictureUrl?: string;
-}
-
-export interface ptpTestUser {
-  id: string;
-  firstName: string;
-  lastName: string;
-  username: string;
-  status?: string;
-  profilePictureUrl?: string;
+  status: string;
+  profilepicture: string;
 }
 
 export interface responseModel {
@@ -27,20 +18,14 @@ export interface chat{
   members: ptpUser[];
   messages: message[];
   displayName: string;
-}
-
-export interface user{
-  id: string;
-  firstName: string;
-  lastName: string;
-  username: string;
-  chats: chat[];
+  profilepicture: string;
+  profilepictureAsString: string;
 }
 
 export interface message {
   id: number;
   chat: chat;
-  sender:user;
+  sender:ptpUser;
   content: string;
   timestamp: string;
   isOwn: boolean;