Add Node build capabilities to composer.json

.gitignore

# Ignore asset build path in theme
# --------------------------------
/web/themes/custom/radix_subtheme/build/

node-yarn-composer.json

{
  "require": {
    "imponeer/composer-yarn-installer": "^1.22",
    "mariusbuescher/node-composer": "*"
  }
  "extra": {
    "mariusbuescher": {
      "node-composer": {
        "node-version": "16.14.0",
        "yarn-version": "1.22.17"
      }
    }
  }
  "scripts": {
    "post-install-cmd": [
      "cd web/themes/custom/radix_subtheme; npm install && npm run production"
    ],
    "post-update-cmd": [
      "cd web/themes/custom/radix_subtheme; npm install && npm run production"
    ]
  }
}