fix(preset): update Vite preset to include env variables in both server and client

[jeremy-code]

• Update Vite preset to include env variables in both server and client (shared)

Per Vite's documentation on Env Variables and Modes (bold mine):

Some built-in constants are available in all cases:

[vercel]

@jeremy-code is attempting to deploy a commit to the t3-oss Team on Vercel.

A member of the Team first needs to authorize it.

[jeremy-code]

@juliusmarminge Hello! Just an obligatory ping just in case you haven't seen this