Fix whitespace.

lib/main.dart

@@ -26,8 +26,8 @@ void main() {
 
   if (testing) {
     () async {
-    Directory documentsDirectory = await getApplicationDocumentsDirectory();
-    String path = join(documentsDirectory.path, 'com_hyperling_expense.db');
+      Directory documentsDirectory = await getApplicationDocumentsDirectory();
+      String path = join(documentsDirectory.path, 'com_hyperling_expense.db');
       await deleteDatabase(path);
     }();
   }