remove crazy elevation from dhasboardcard

lib/pages/dashboard/dashboard_card.dart

@@ -18,7 +18,6 @@ class DashboardCard extends StatelessWidget {
   Widget build(BuildContext context) {
     return Card(
       margin: EdgeInsets.all(8.0),
-      elevation: 8.0,
       child: Padding(
         padding: padding,
         child: Column(