Add unions

Author: Max-Levitskiy

src/login/login.component.ts

@@ -18,7 +18,8 @@ export class LoginComponent implements OnInit {
   returnUnion: string;
   unions = {
     mydata: {key: 'mydata', name: 'My Data', url: 'https://mydata.webtree.org/applyToken'},
-    imprint: {key: 'imprint', name: 'Imprint', url: 'https://imprint.webtree.org/applyToken'}
+    imprint: {key: 'imprint', name: 'Imprint', url: 'https://imprint.webtree.org/applyToken'},
+    unions: {key: 'unions', name: 'Unions', url: 'https://unions.webtree.org/!/applyToken'}
   };
   loggedIn = false;