This should allow Terser to tree shake code branches.

* Correctly define NODE_ENV and `process.browser`

* Add crossOrigin property

Fix typo

* Re-require all module information for client-side initializers list
We really should re-work how our loadable code words, because this passes an excessive number of modules to the client.

In the ideal world, we only pass the entry module id of each chunk, but there's no point in investing the time until we switch to webpack 5 which completely revamps the chunk graph API.

* Get a unique set of ids

* Update getInitialprops docs

* Update docs for prefetch

* Updated prefetch docs

* Removed hotSelfAccept from docs and othr changes

* Prefer /public

* dots dots dots dots

* Added docs for Automatic Pre-rendering

* Added a note to <Link />

* Removed 404 example

* Added references for Automatic pre-rendering

* Added a typescript section for AMP

* Executed doctoc again to add AMP sections

* Properly explain automatic pre-rendering

* Switch back to LF

* Apply corrections
Co-Authored-By: NJoe Haddad <timer150@gmail.com>

* Minor corrections

* Added back some periods

* Added back some periods

* Add handling for invalid pages during autoExport

* Add err.sh link for invalid page export

* Fix typo

* Apply suggestions from code review
Co-Authored-By: NTim Neutkens <tim@timneutkens.nl>

This adjusts our default terser configuration to not break seemingly valid JavaScript code.

Closes #7178
Closes #7496

This change will prompt the user about missing packages using the same DX instead of two separate code paths.

* Adding Typescript description to next fixes #7529

* Change default export

* Improve typing for next

* Remove dev server typings

* Don't confuse the user with an eagerly created `tsconfig.json`

* Fix errors

* Extra log

* Bail when doing nothing

* Fix next start in serverless mode with public directory

* Add public folder to serverless test suite

* Add export const config support and make withAmp a no-op

* Use babel plugin for PageConfig

* Fix serverless-loader exports

* Add backwards compatibility for withAmp

I added a link to the MDX docs because to enable Typescript we do exactly the same.

* with-cookie-auth: don't rely on the Host header

* Default `target` in `loadConfig` instead of `next build`
We should set the target from the environment variable during `loadConfig` instead of in `next build`. This ensures all other locations in Next.js that rely on `config` can read the correct value to toggle behaviors.

* Use object destructuring

* Add tests for builder target

* Run start with serverless