update json file

Author: parthlambdatest

.smartui.json

@@ -0,0 +1,16 @@
+{
+  "storybook": {
+    "browsers": [
+      "firefox"
+    ],
+    "viewports": [
+      [
+        480
+      ],
+      [
+        1440
+      ]
+    ],
+    "waitForTimeout": 0
+  }
+}