feat: color prop can accept rgb colors

[Roman178]

What changes are introduced?

HashLoader didn't accept rgb or rgba color (issue #582). I have added a new function that handles rgb color strings.

According to the docs in the mozilla (https://developer.mozilla.org/en-US/docs/Web/CSS/color_value/rgb), I tried to take into account all the cases, namely:
rgb(255 255 255 / 80%)
rgb(255 255 255)
rgb(255, 255, 255, 0.8)
rgb(255, 255, 255)

and their aliases rgba(...

I gave more priority to the opacity value contained in the rgb string. If the string does not contain this value, the opacity value is taken from the argument. I can change it if necessary.

Also I added new test cases for the function calculateRgba

I kindly ask you to review my PR. @davidhu2000

[davidhu2000]

@Roman178 thanks for this update, i'll take a look in the next week or two. Crazy busy these days. Appreciate the patience

[Roman178]

@davidhu2000 Thanks for the heads-up. No rush at all. I appreciate your time.

[Roman178]

Hi @davidhu2000,
I hope you're doing well! I just wanted to follow up on my pull request. I understand you're very busy, but if you could find a moment to review it, I would greatly appreciate it.

Thank you for your time and consideration!

[davidhu2000]

hey @Roman178 the code looks good. I'll get this published as a new version soon

[Roman178]

@davidhu2000 thanks for approving my PR.