chore:contentstack package update

Signed-off-by: Amitkanswal <amit.kanswal@contentstack.com>

Author: Amitkanswal

package-lock.json

@@ -14,7 +14,7 @@
     "@contentstack/live-preview-utils": "^1.4.0",
     "@contentstack/utils": "^1.3.1",
     "@textea/json-viewer": "^3.3.0",
-    "contentstack": "github:contentstack/contentstack-javascript#fix/CS-43301-merge-live-preview",
+    "contentstack": "^3.19.0",
     "html-react-parser": "^3.0.16",
     "moment": "^2.30.1",
     "next": "^14.0.4",
@@ -33,4 +33,4 @@
     "eslint-config-next": "^14.0.4",
     "typescript": "^5.3.3"
   }
-}
+}