Add support for Node V18

[Allianzcortex]

Description :

When trying to deploy the project in Vercel with Node.js V18, there is the following error :

Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath './lib/tokenize' is not defined by "exports" in /vercel/path0/node_modules/postcss-safe-parser/node_modules/postcss/package.json
    at new NodeError (node:internal/errors:405:5)
    at exportsNotFound (node:internal/modules/esm/resolve:366:10)
    at packageExportsResolve (node:internal/modules/esm/resolve:713:9)
    at resolveExports (node:internal/modules/cjs/loader:590:36)
    at Module._findPath (node:internal/modules/cjs/loader:664:31)
    at Module._resolveFilename (node:internal/modules/cjs/loader:1126:27)
    at Module._load (node:internal/modules/cjs/loader:981:27)
    at Module.require (node:internal/modules/cjs/loader:1231:19)
    at require (node:internal/modules/helpers:177:18)
    at Object.<anonymous> (/vercel/path0/node_modules/postcss-safe-parser/lib/safe-parser.js:1:17) {
  code: 'ERR_PACKAGE_PATH_NOT_EXPORTED'
}
Node.js v18.20.4
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
Error: Command "yarn run build" exited with 1

looks like the issue is related to postcss-safe-parser library.