Avoid confusing error when trying to run in production

[wkeese]

Developers in our division have NODE_ENV=dev set in our environments. This leads to confusing errors when you try to build and run in production via:

npm run build
npm run preview:prod

Everything seems to work, but when you try to load any page it gets an error:

% npm run preview:prod

> carbon-react-starter@0.1.0 preview:prod
> cross-env NODE_ENV=production node src/server.js

Server started at http://localhost:5173/
TypeError: jsxDEV is not a function
    at render (file:///Users/bill/oss/carbon-react-router-starter/dist/server/entry-server.js:1396:132)
    at file:///Users/bill/oss/carbon-react-router-starter/src/server.js:67:41
TypeError: jsxDEV is not a function
    at render (file:///Users/bill/oss/carbon-react-router-starter/dist/server/entry-server.js:1396:132)
    at file:///Users/bill/oss/carbon-react-router-starter/src/server.js:67:41
TypeError: jsxDEV is not a function
    at render (file:///Users/bill/oss/carbon-react-router-starter/dist/server/entry-server.js:1396:132)
    at file:///Users/bill/oss/carbon-react-router-starter/src/server.js:67:41

Your preview:prod script explicitly sets NODE_ENV to "production":

    "preview:prod": "cross-env NODE_ENV=production node src/server.js",

So maybe the build scripts should do the same thing?

    "build": "npm run build:client && npm run build:server",
    "build:client": "vite build --ssrManifest .vite/ssr-manifest.json  --outDir dist/client",
    "build:server": "vite build --ssr src/entry-server.jsx --outDir dist/server",

And also maybe build should be renamed to build:prod (and maybe likewise for build:client and build:server).