icon size relative to screensize

lib/widgets/round_button_widget.dart

@@ -18,7 +18,7 @@ class RoundAddButton extends StatelessWidget {
       child: Icon(
         Icons.add_outlined,
         color: Colors.white,
-        size: MediaQuery.of(context).size.height * 0.5,
+        size: MediaQuery.of(context).size.height * 0.05,
       ),
     );
   }