neon: HomePage improve code readability of the loading state

packages/neon/neon/lib/src/pages/home.dart

@@ -184,10 +184,12 @@ class _HomePageState extends State<HomePage> {
                     OptionBuilder<NavigationMode>(
                   option: _globalOptions.navigationMode,
                   builder: (final context, final navigationMode) {
-                    if (accountsSnapshot.hasData) {
+                    final accounts = accountsSnapshot.data;
-                      final accounts = accountsSnapshot.data!;
+                    final account = accounts?.find(_account.id);
-                      final account = accounts.find(_account.id);
+                    if (accounts == null || account == null) {
-                      if (account != null) {
+                      return const Scaffold();
+                    }
+
                     final isQuickBar = navigationMode == NavigationMode.quickBar;
                     final drawer = Builder(
                       builder: (final context) => Drawer(
@@ -281,8 +283,7 @@ class _HomePageState extends State<HomePage> {
                                                       child: DropdownButton<String>(
                                                         isExpanded: true,
                                                         dropdownColor: Theme.of(context).colorScheme.primary,
-                                                            iconEnabledColor:
+                                                        iconEnabledColor: Theme.of(context).colorScheme.onBackground,
-                                                                Theme.of(context).colorScheme.onBackground,
                                                         value: _account.id,
                                                         items: accounts
                                                             .map<DropdownMenuItem<String>>(
@@ -566,9 +567,6 @@ class _HomePageState extends State<HomePage> {
                         ],
                       ),
                     );
-                      }
-                    }
-                    return const Scaffold();
                   },
                 ),
               ),