fix: babel vulnerable to arbitrary code execution when compiling specifically crafted malicious code (#15840)

Resolves [Dependabot Alert
95](https://github.com/twentyhq/twenty/security/dependabot/95) - babel
vulnerable to arbitrary code execution when compiling specifically
crafted malicious code.

These were the few options we had for a direct drop-in replacement.
- [x-var](https://www.npmjs.com/package/x-var?activeTab=readme)
- [cross-let](https://www.npmjs.com/package/cross-let)
- [cross-var-no-babel](https://www.npmjs.com/package/cross-var-no-babel)

x-var has the most weekly downloads among the three and it is also the
most actively maintained fork of the original cross-var package that
introduced the vulnerability. There is no syntax difference per the
documentation, but I do not have a windows machine to test.

`cross-var-no-babel` offers the most minimal changes, but is also
abandoned without a public-facing repo.

nx.json

@@ -234,7 +234,7 @@
             "command": "nx storybook:build {projectName}",
             "forwardAllArgs": false
           },
-          "cross-var chromatic --project-token=$CHROMATIC_PROJECT_TOKEN --storybook-build-dir=storybook-static {args.ci}"
+          "chromatic --storybook-build-dir=storybook-static {args.ci}"
         ],
         "parallel": false
       },