make it so that the first instance after instalation is lemmy.ml

lib/main.dart

@@ -23,10 +23,6 @@ Future<void> main() async {
   final accountsStore = AccountsStore();
   await accountsStore.load();
 
-  if (accountsStore.instances.isEmpty) {
-    accountsStore.addInstance('lemmy.ml');
-  }
-
   runApp(
     MultiProvider(
       providers: [

lib/stores/accounts_store.dart

@@ -30,8 +30,8 @@ class AccountsStore extends ChangeNotifier {
     // I barely understand what I did. Long story short it casts a
     // raw json into a nested ObservableMap
     nestedMapsCast<T>(T f(Map<String, dynamic> json)) => HashMap.of(
-          (jsonDecode(prefs.getString(SharedPrefKeys.tokens) ?? '{}')
-                  as Map<String, dynamic>)
+          (jsonDecode(prefs.getString(SharedPrefKeys.tokens) ??
+                  '{"lemmy.ml":{}}') as Map<String, dynamic>)
               ?.map(
             (k, e) => MapEntry(
               k,