`upsun project:init` does not detect multiple directories

[tylers-username]

Not sure if this is expected behavior or not, so I'll report here:

Steps to reproduce

1. Download Upsun vendorized binary for macos
2. Copy it to project directory
   • Directory structure:

     # tree -L 2
     ├── backend #flask backend
     │   ├── app
     │   ├── main.py
     │   └── requirements.txt
     ├── frontend # React frontend
     │   ├── README.md
     │   ├── node_modules
     │   ├── package-lock.json
     │   ├── package.json
     │   ├── public
     │   ├── src
     │   ├── tailwind.config.js
     │   └── tsconfig.json
     ├── readme.md
     └── upsun # Upsun Binary
     

3. Launch: upsun project:init from project root (not within frontend or backend)
   • Select redis-persistent as a service to add
4. Review created files:
   
   • .environment
   • .upsun/config.yaml

Expected

• .environment to be in each app's directory
• .upsun/config.yaml to include both frontend and backend app

Actual

• .environment is in the root of the repository
• .upsun/config.yaml does not include the frontend app