Update angular.json

Author: ramyarajendran27

angular.json

@@ -27,7 +27,8 @@
               "src/styles.css",
               "./node_modules/@syncfusion/ej2-material-theme/styles/material.css"
             ],
-            "scripts": []
+            "scripts": [],
+            "es5BrowserSupport": true
           },
           "configurations": {
             "production": {
@@ -125,4 +126,4 @@
     }
   },
   "defaultProject": "getting-started"
-}
+}