[Feature]: environment prompt

[stijns96]

What area(s) will this request affect?

Theme

What type of change do you want to see?

Substantial change to existing feature

Overview

Within our company we have built a wrapper around the Shopify CLI to e.g. build our files first and after that spin up the Shopify server. Additionally, when you execute pnpm run push, and you don't give it a environment flag, it will prompt the user to choose an environment from the shopify.theme.toml. The user can select one or even multiple environments to push to. The CLI will then do a built and pushes it to the select environment(s). When you select multiple is pushes the themes one by one.

Motivation

Speed up the releasing process and making releasing themes easier throughout multiple stores and staging environments