adding dependencies

Author: nakul-py

packages/jupyter-chat/package.json

@@ -51,6 +51,7 @@
     "@jupyterlab/codeeditor": "^4.2.0",
     "@jupyterlab/codemirror": "^4.2.0",
     "@jupyterlab/docmanager": "^4.2.0",
+    "@jupyterlab/docregistry": "^4.2.0",
     "@jupyterlab/filebrowser": "^4.2.0",
     "@jupyterlab/fileeditor": "^4.2.0",
     "@jupyterlab/notebook": "^4.2.0",
@@ -62,6 +63,7 @@
     "@lumino/disposable": "^2.0.0",
     "@lumino/polling": "^2.0.0",
     "@lumino/signaling": "^2.0.0",
+    "@lumino/widgets": "^2.0.0",
     "@mui/icons-material": "^7.3.2",
     "@mui/material": "^7.3.2",
     "clsx": "^2.1.0",

yarn.lock

@@ -2309,6 +2309,7 @@ __metadata:
     "@jupyterlab/codeeditor": ^4.2.0
     "@jupyterlab/codemirror": ^4.2.0
     "@jupyterlab/docmanager": ^4.2.0
+    "@jupyterlab/docregistry": ^4.2.0
     "@jupyterlab/filebrowser": ^4.2.0
     "@jupyterlab/fileeditor": ^4.2.0
     "@jupyterlab/notebook": ^4.2.0
@@ -2321,6 +2322,7 @@ __metadata:
     "@lumino/disposable": ^2.0.0
     "@lumino/polling": ^2.0.0
     "@lumino/signaling": ^2.0.0
+    "@lumino/widgets": ^2.0.0
     "@mui/icons-material": ^7.3.2
     "@mui/material": ^7.3.2
     "@types/jest": ^29.2.0