Merge pull request #272 from humhub/270-cant-access-remembered-site-w…

…here-humhub-runs-in-a-subdirectory

Run instance with startURL instead of baseURL

lib/pages/web_view.dart

@@ -116,7 +116,7 @@ class WebViewAppState extends ConsumerState<WebView> {
       UniversalOpenerController controller = args;
       ref.read(humHubProvider).setInstance(controller.humhub);
       _manifest = controller.humhub.manifest!;
-      url = controller.url;
+      url = _manifest.startUrl;
     }
     if (args == null) {
       _manifest = m.MyRouter.initParams;