Fixes #6639 and incorrect heading IDs.

* Remove sourceMaps from amp styles to not go over limit

* Add test to make sure style sourceMaps
are removed in amp

* Fix relative next path not working in
webpack config

* Also add relative fix to amp path

* Check for the user's home directory in the build output

* Output files on windows for debugging

* add process cwd

* try more paths

* Add branch for winblows

* Print info on error

* set proper env

* try fix

* Add a new field to webpack types

* Revert "Add a new field to webpack types"

This reverts commit d35fa02207fbfd0085da0fc56aac42c4ff7c34c9.

* Add HashedChunkIdsPlugin to make consistent chunk ids

* Revert "Revert "Add a new field to webpack types""

This reverts commit 338219049e1432038f90c91928b010bbb1267999.

* Make it optional

* Remove record ids

* Revert "Remove record ids"

This reverts commit 15c22dbcda72466c382397c91d02295620f62326.

This will allow symlinked assets to be removed from the cache as well

Fixes: #5620 

More updates to the router coming.

Adding one more example which only uses redux and not thunk. This helps a lot for a beginner to understand basic redux first.

* Ensure all modules are identified

* Extend a webpack Plugin
Co-Authored-By: NTimer <timer150@gmail.com>

* Add err.sh link for threw undefined

* Update wording
Co-Authored-By: Nijjk <22380829+ijjk@users.noreply.github.com>

* Show a better error when someone throws undefined

* Update error wording
Co-Authored-By: Nijjk <22380829+ijjk@users.noreply.github.com>

* Update error wording in test
Co-Authored-By: Nijjk <22380829+ijjk@users.noreply.github.com>

* Update test and add check for statusCode
before updating error

- Removed `fetchRoute` as it was only used once (internal method, non-breaking)
- Convert files to TypeScript
- Don't extend `ServerRouter` from `Router` as it introduces unneeded overhead, we only have to provide `pathname` `asPath` and `query` for `withRouter`. Also added `events` even though it shouldn't be called on SSR, just making sure we don't break things.

* Apply workaround for Firefox bug
and shallow routing

* Update to only apply workaround when needed

* Add TODO for future removal
Co-Authored-By: Nijjk <22380829+ijjk@users.noreply.github.com>

* Inject the build ID after webpack runs

* add webpack sources types

* use webpack plugin instead

* reset file

* Skip source maps if none were provided
Co-Authored-By: NTimer <timer150@gmail.com>

* initial overmind example

* fix linting

* add with-overmind readme

Fixes: #6497 

* Ensure correct key order

* Fix bug

* Format this document while we're at it

* Show example of using webpack in config

* Add experimental profiling flag

* Update config.js

* Add using CircleCI env var for max workers
and expose webpack to config

* Expose experimental cpu config

* Fix typo

* Remove log

When the webpack `mode` is set to `production`, `minimizer: undefined` means "use the default webpack minifier."

We need to explicitly disable the webpack minifier via `minimize: false`. This should speed up non-serverless builds. 😄 

This doesn't affect dev, but I added the toggle there for consistency.

When compiling the serverless target there is no need for having an array of configs.

* eliminate need for render() method

* remove stray

This simplifies the example and reuses the existing `initialProps.styles` logic.

* Don’t load autodll-webpack-plugin for production bootup

* Only require autodll when client-side compilation is ran

* Try to fix build