🚚(global) update paths and urls after ownership transfer

This repository has been recently transfered from openfun to lasuitenumerique.
We need to fix some paths and urls especially to fix documentation and README

packages/react/.storybook/themes.ts

@@ -6,7 +6,7 @@ const buildTheme = (
   type: "default" | "dark" = "default"
 ) => {
   return {
-    brandUrl: "https://github.com/openfun/cunningham",
+    brandUrl: "https://github.com/suitenumerique/cunningham",
     brandImage: "logo-cunningham.svg",
     brandTitle: "Cunningham",
     brandTarget: "_self",