This folder is used for extra files that should be included in deployments to firebase.
After the AIO application had been built and before it is deployed all files and folders inside the folder with the same name as the current deployment mode (next, stable, archive) will be copied to the dist folder.
See the scripts/deploy-to-firebase/index.mjs script for more details.
Note: The script always expects there to be a folder for the current deployment mode (even if it is empty).