Update snackbar.dart

Author: ashitaprasad

packages/apidash_design_system/lib/widgets/snackbar.dart

@@ -3,9 +3,11 @@ import 'package:flutter/material.dart';
 SnackBar getSnackBar(
   String text, {
   bool small = true,
+  Color? color,
 }) {
   return SnackBar(
     width: small ? 300 : 500,
+    backgroundColor: color,
     behavior: SnackBarBehavior.floating,
     content: Text(
       text,