It is very convenient to be able to export WEBP right from penpot.
Otherwise users have to first download to PNG then convert it locally.
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Playwright only supports JPEG and PNG. So in order to support WEBP I had
to first generate a PNG and then convert it afterwards.
Signed-off-by: Dalai Felinto <dalai@blender.org>
This also a fix of passing incorrect prop :shared-libs
to a component that already expectes :libraries.
It also removes unnecesary use of refs/libraries ref
* 🐛 Pass color format to css formatter
* 📎 Use get method to retrieve format
* 📎 Add UI test to check background color is correctly copied to clipboard when changing the format
