Update build system and support new rgb syntax

[simonwep]

Summary

• Update build system and all dependencies to their latest version (still using webpack).
• Change how color values are interpreted:
  • It's no longer important to use hsva or rgba when providing an alpha value (see mdn).
  • Support percentages for the r, g, b and alpha value of rgba.

Fixes #326

[simonwep]

@guivr you can check out this PR locally and use a package like serve to serve the root directory. You can try the values from your issue #326 to see if that's what you wanted :) If everything is alright, I'd merge this issue and release a new patch version.

[guivr]

Amazing @simonwep! Yes, RGB is working great.

Could you please also add support for this hsl(a):
hsl(0 80% 50% / 25%)
mdn for hsl

Thanks!

[simonwep]

Amazing @simonwep! Yes, RGB is working great.

Could you please also add support for this hsl(a): hsl(0 80% 50% / 25%) mdn for hsl

Thanks!

@guivr Done, didn't see that this was a thing now as well. Percentages are now supported for both the alpha value of hsv and hsl :)

[guivr]

Hi @simonwep! Thanks :)

Works well 🚀