A bunch of updated, fixes and changes...

[babakfp]

Hi

I dropped node v14 because of using replaceAll instead of regex for better readability.

Added prettier which makes things easier and more consistent. It sometimes makes things look ugly or unreadable but, in general, it's a good tool to use.

Renamed LICENSE file name and its content so github can display the license name on the repo page.

Did some other stuff... Check out the commits.

NOTE: When releasing the new version, in CHANGELOG.md change v3.0.0+ to that new version.