updated js sdk and resolved isNew record field conflict

ui/src/components/records/RecordUpsertPanel.svelte

@@ -56,7 +56,7 @@
 
     $: hasChanges = hasFileChanges || originalSerializedData != serializedData;
 
-    $: isNew = !original || original.isNew;
+    $: isNew = !original || original.$isNew;
 
     $: canSave = isNew || hasChanges;
 

ui/src/utils/CommonHelper.js

@@ -694,8 +694,8 @@ export default class CommonHelper {
             const formats = {
                 19: "yyyy-MM-dd HH:mm:ss",
                 23: "yyyy-MM-dd HH:mm:ss.SSS",
-                20: "yyyy-MM-dd HH:mm:ssZ",
-                24: "yyyy-MM-dd HH:mm:ss.SSSZ",
+                20: "yyyy-MM-dd HH:mm:ss'Z'",
+                24: "yyyy-MM-dd HH:mm:ss.SSS'Z'",
             }
             const format = formats[date.length] || formats[19];
             return DateTime.fromFormat(date, format, { zone: 'UTC' });