dart format

lib/widget/centered_leading.dart

@@ -6,8 +6,8 @@ class CenteredLeading extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) => Column(
-      mainAxisAlignment: MainAxisAlignment.center,
-      crossAxisAlignment: CrossAxisAlignment.center,
-      children: [child],
-    );
+    mainAxisAlignment: MainAxisAlignment.center,
+    crossAxisAlignment: CrossAxisAlignment.center,
+    children: [child],
+  );
 }