Allow OKlab / OKlch as output format

[ChrisKuBa]

Description

In the current version of the Web Tool I can NOT use neither oklab nor oklch as output option in use "Use" area. Only the older versions lab and lch are available.

Why do you need this feature?

The ok version fix some errors of the none ok version.

Additional context

Both ok color models should be available in the whole web tool and also in the npm version as an export / output option.

[nitedani]

Input also only allows RGB,HEX,HSL. This result in dull colors on modern devices, no P3 support on Lonardo website, it only supports sRGB. You can't see it on the capture, but the P3 red in the right is more saturated on my display than the #ff0000 red, which is the same red Leonardo allows to pick. So it's not possible to work with colors outside of sRGB on Leonardo website.