* Update Webpack to the latest version (5.37.0)

* Update `webpack-dev-server` to the latest version (3.11.2)

* Install `webpack-cli`

* Replace `CommonsChunkPlugin` with `splitCunks`

* Remove `NamedModulesPlugin`

* Remove `UnusedFilesWebpackPlugin`

* Replace `extract-text-webpack-plugin` with `mini-css-extract-plugin`

* Upgrade `html-webpack-plugin` to the latest version (5.3.1)

* Upgrade `html-webpack-harddisk-plugin` to the latest version (2.0.0)

* Remove `banner-webpack-plugin`

* Replace deprecated `[hash]` in the config

* Add `mode` to the config

* Upgrade `file-loader` to the latest version (6.2.0)

* Don't include polyfills for `path` and `crypto`

* Remove `uglifyjs-webpack-plugin` and use terser instead

* Workaround CLJS_GLOBAL needs top-level `process` object

* yarn add node-polyfill-webpack-plugin

* Use some polyfills

Apparently, the polyfill for crypto is still necessary since the front-end
code isn't migrated yet to the browser's native Crypto API
(https://www.w3.org/TR/WebCryptoAPI/)

See also https://www.npmjs.com/package/node-polyfill-webpack-plugin

* Admin smoke test: fix getting the empty DB path

* Onboarding setup test: fix getting the empty DB path

* Replace file-loader with type: "asset/resource"

See https://webpack.js.org/guides/asset-modules/

* upgrade react-markdown (#16934)

* Use large CI resource since webpack consumes a lot of memory [ci nocache]

https://circleci.com/docs/2.0/configuration-reference/#resourceclass



* Tidy up `NODE_ENV` references

* Remove Webpack `DefinePlugin`

Co-authored-by: Ariya Hidayat <ariya@metabase.com>
Co-authored-by: Dalton Johnson <daltojohnso@users.noreply.github.com>
Co-authored-by: Alexander Lesnenko <alxnddr@users.noreply.github.com>