chore:updated sdk to latest

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

Author: amit-kanswal-cs

package-lock.json

@@ -9,7 +9,7 @@
     "@contentstack/utils": "^1.3.1",
     "@textea/json-viewer": "^3.3.0",
     "@types/react": "^18.2.48",
-    "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",
     "nth-check": "^2.1.1",
@@ -58,4 +58,4 @@
     "eslint-plugin-react": "^7.33.2",
     "react-scripts": "^5.0.1"
   }
-}
+}