Add Tree-shaking and UMD info on Docs

[AlgusDark]

Bloomer is able to be used with Tree-shaking thanks to bloomer/esm and already has module | jsnext:main in package.json.

Also, you can use it with UMD thanks to www.unpkg.com

[AlgusDark]

Actually, we have this "side effects" on every component since we export default withHelpersModifiers HOC, so... we need to add the annotation /*@__PURE__*/ in function call to let uglify remove it:

const HOC = /*@__PURE__*/withHelpersModifiers(Component)
export default HOC;

[AlgusDark]

We need to wait until resolution of microsoft/TypeScript#16727, and/or microsoft/TypeScript#13721 to see how we can implement Tree-Shaking because right now, TSC is removing /*@__PURE__*/ comment.

[dacioromero]

I noticed this was marked as done, but there's still a minor issue with it.

The "browser" field in bloomer's package.json causes webpack to load the non-esm code which results in worse tree-shaking.

bloomer/package.json

Line 9 in b9af827

"browser": "bundles/bloomer.min.js",

See webpack/webpack#4674