feat!: Allow additional background colours for Badge and remove dark blue option

[dlnr]

Processed all badge colors from the Figma file, and remove dark-blue which is only used for the hover color of primary blue. This is why we need a semantic color layer.

[RubenSibon]

[...] remove dark-blue which is only used for the hover color of primary blue. This is why we need a semantic color layer.

Yeah, it's weird that light blue is allowed, but dark blue isn't.

You might as well change the colours for Avatar as that is heavily based on Badge.

[VincentSmedinga]

We’ll be deciding on definitive colour names soon, so the options will probably change once more, but this is a good improvement until then. Let’s make Avatar consistent at that later moment.