Tablet layout

lib/ui/app/responsive_padding.dart

@@ -0,0 +1,22 @@
+import 'package:flutter/material.dart';
+import 'package:invoiceninja_flutter/constants.dart';
+import 'package:invoiceninja_flutter/utils/platforms.dart';
+
+class ResponsivePadding extends StatelessWidget {
+  const ResponsivePadding({this.child});
+
+  final Widget child;
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: isMobile(context)
+          ? const EdgeInsets.all(kMobileDialogPadding)
+          : const EdgeInsets.symmetric(
+              vertical: kMobileDialogPadding,
+              horizontal: kTabletDialogPadding,
+            ),
+      child: child,
+    );
+  }
+}