Make minified Docker image

**Is your feature request related to a problem? Please describe.**
I believe the Docker image over at https://hub.docker.com/r/swacli/static-web-apps-cli is bloated and takes too long to pull since it contains full development environments for several programming languages

**Describe the solution you'd like**
To add tagged versions of the image with the environment you'd like to be built in or the lack of any for a minified image at https://hub.docker.com/r/swacli/static-web-apps-cli/tags

**Describe alternatives you've considered**
I suppose the alternative is to make my own minified node container with npm install -g @azure/static-web-apps-cli

Inizia individuando la configurazione di build e tagging dell’immagine Docker per l’immagine static-web-apps-cli, quindi confronta il contenuto attuale dell’immagine con l’alternativa npm install -g @azure/static-web-apps-cli. Il completamento dovrebbe includere un tag dell’immagine minificata documentato oppure varianti dell’immagine con tag per gli ambienti richiesti, con una dimensione di download sostanzialmente inferiore.

Scritto dal modello di indicizzazione a partire dal testo della issue.