Feat - Agent chat tab (#13061)

Co-authored-by: Félix Malfait <felix.malfait@gmail.com>
Co-authored-by: Marie <51697796+ijreilly@users.noreply.github.com>
Co-authored-by: Antoine Moreaux <moreaux.antoine@gmail.com>
Co-authored-by: Raphaël Bosi <71827178+bosiraphael@users.noreply.github.com>

package.json

@@ -63,6 +63,7 @@
     "add": "^2.0.6",
     "addressparser": "^1.0.1",
     "afterframe": "^1.0.2",
+    "apollo-link-rest": "^0.9.0",
     "apollo-server-express": "^3.12.0",
     "apollo-upload-client": "^17.0.0",
     "archiver": "^7.0.1",