Do not bundle hidden files in the build archive

[ibndawood]

When we run npm run build, the following hidden files are included in the bundle:

facebook-for-woocommerce/.dist.env
facebook-for-woocommerce/.npmrc
facebook-for-woocommerce/.vscode/ (if present locally)
facebook-for-woocommerce/.vscode/launch.json (if present locally)
facebook-for-woocommerce/data/.gitkeep
facebook-for-woocommerce/.wp-env.json

The .gitattributes file should be configured to ignore the hidden files on export.