fixed grades page ui in summary

filcnaplo_mobile_ui/lib/common/empty.dart

@@ -23,7 +23,6 @@ class Empty extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    // make the face randomness a bit more constant (to avoid strokes)
     int index = Random(DateTime.now().minute).nextInt(faces.length);
 
     return Center(
@@ -32,9 +31,19 @@ class Empty extends StatelessWidget {
         child: Text.rich(
           TextSpan(
             text: faces[index],
-            style: TextStyle(fontSize: 32.0, fontWeight: FontWeight.w500, color: AppColors.of(context).text.withOpacity(.75)),
+            style: TextStyle(
+                fontSize: 32.0,
+                fontWeight: FontWeight.w500,
+                color: AppColors.of(context).text.withOpacity(.75)),
             children: subtitle != null
-                ? [TextSpan(text: "\n" + subtitle!, style: TextStyle(fontSize: 18.0, height: 2.0, color: AppColors.of(context).text.withOpacity(.5)))]
+                ? [
+                    TextSpan(
+                        text: "\n" + subtitle!,
+                        style: TextStyle(
+                            fontSize: 18.0,
+                            height: 2.0,
+                            color: AppColors.of(context).text.withOpacity(.5)))
+                  ]
                 : [],
           ),
           textAlign: TextAlign.center,