New build command layout where all builders are a subcommand of `discraft build`

[The-Best-Codes]

Basically, instead of discraft exec build, discraft vercel build, and discraft build, there would just be one main command with subcommands:

• discraft build: Interactive command to choose a builder (default, vercel, or executable)
• discraft build exec (same as discraft exec build)
• discraft build vercel (same as discraft vercel build)
• discraft build default (same as discraft build right now, for the JS/TS templates)

Something similar could happen to the dev command in the future perhaps. I would also just redo the folder and CLI command structure. This might be one of those things where I redo the whole library, and it can just bump up to 2.0.0... but not any time soon. 🤭