docs: update env-and-mode.md to fix default modes

[matbarker]

Description

As per this pull request #4483, the default mode for preview is now production

Additional context

---

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

Before submitting the PR, please make sure you do the following

• Read the Contributing Guidelines.
• Read the Pull Request Guidelines and follow the Commit Convention.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Ideally, include relevant tests that fail without this PR but pass with it.

[patak-dev]

Isnt the command for dev called serve?

vite/packages/vite/src/node/cli.ts

Line 68 in 9e06b81

.alias('serve')

[haoqunjiang]

That's somehow confusing 😂 I thought the documentation refers to the npm run serve command at my first glance.

[patak-dev]

Isnt it referring to that? I'm more confused now 😅

[haoqunjiang]

😅 I'm more than confused now.

So does this statement actually mean:

By default, the dev server (vite / vite serve / npm run dev) runs in development mode, and the build and serve commands (vite build / npm run build and vite preview / npm run serve) run in production mode.

I'm confused so let's discuss further

[haoqunjiang]

Or, to better organize it, we can change the documentation to:

By default:

• vite / vite serve / npm run dev (the dev server) runs in development mode;
• vite build / npm run build (the build command) runs in production mode.
• vite preview / npm run serve (the preview server) runs in production mode.

[patak-dev]

That would be definitely more clear, and I see now why I was confused by this (again)

I would prefer that we deprecate npm vite serve in favour of vite dev. It is really confusing that npm run serve is not calling vite serve. Or we could change serve to another word, given that we can't use preview here

[haoqunjiang]

Yeah I agree.

[patak-dev]

We decided to deprecate vite serve and rename it to vite dev. So we can merge this one now, I'll do another PR later