wip squash? plain AppBar where isLoading always false

Author: gnprice

lib/widgets/app.dart

@@ -180,10 +180,9 @@ class ChooseAccountPage extends StatelessWidget {
     assert(!PerAccountStoreWidget.debugExistsOf(context));
     final globalStore = GlobalStoreWidget.of(context);
     return Scaffold(
-      appBar: ZulipAppBar(
+      appBar: AppBar(
         title: Text(zulipLocalizations.chooseAccountPageTitle),
-        actions: const [ChooseAccountPageOverflowButton()],
-        isLoading: false),
+        actions: const [ChooseAccountPageOverflowButton()]),
       body: SafeArea(
         minimum: const EdgeInsets.fromLTRB(8, 0, 8, 8),
         child: Center(