chore(react-tree-grid): add changeset for navigation fix

Author: bsunderhus

change/@fluentui-contrib-react-tree-grid-4d3116d4-4a33-4a66-988d-62f9180d18f1.json

@@ -0,0 +1,7 @@
+{
+  "type": "patch",
+  "comment": "Fix TreeGrid level navigation when virtualized rows are wrapped in additional containers",
+  "packageName": "@fluentui-contrib/react-tree-grid",
+  "email": "bsunderhus@microsoft.com",
+  "dependentChangeType": "patch"
+}