Remove webpack

[faustinoaq]

DO NOT MERGE YET! ⚠️

This highly depends on #865 and #864

Also please be aware of all the breaking changes

No NPM means, we need to use vanilla JS and plain CSS.

Maybe we can propose a --npm flag, WDYT?

Description of the Change

⚠️ This PR is optional, because to remove webpack we require to use plain JS and CSS without npm and sass dependencies.

This PR depends on #865

Alternate Designs

Keep configurable/removable webpack/sass dependency implemented on #865

Benefits

• Removes amber.min.js dependency, see: Update assets #825
• No more NPM vulnerabilities by default, see Github flagging hapijs for vulnerability #834
• Use plain JS and CSS without dependencies
• No opinionated frontend, so, front-end devs can use whatever tools they want (react, yarn, rollup, parcel, etc) without default bundler config.
• No require NPM in amber generated projects, so we'd remove npm from amber Dockerfile:

amber/Dockerfile

Lines 7 to 9 in ddcb6f2

	# Install Node
	RUN curl -sL https://deb.nodesource.com/setup_6.x | bash -
	RUN apt-get install -y nodejs

Possible Drawbacks

• The plain JS is using ES5 to be compatible with most browsers
• Sass file has been replaced by plain CSS (so, no color variables here)
• To copy assets into public/ folder, amber watch is using auxiliar tasks with cp and cat commands

[drujensen]

Do we want to remove webpack or do we want to remove the dependency? I actually like having webpack included out of the box, but I want the ability to remove/replace it if so desired. wdyt?

[drujensen]

We will need to figure out how to include this for anyone using web sockets.

[drujensen]

awesome! 💯

[drujensen]

This doesn't seem anything to do with removing web pack.

[eliasjpr]

I am confused about this PR in the sense that is Removing something but it adds more 1700+ lines 😕 Other than that Webpack can be 💣

[faustinoaq]

@eliasjpr This PR is not ready yet, (I just update the PR description) This highly depends on #865 and #864