Favicon not dark-mode friendly

[OfficialCRUGG]

Compared to the other Hop sites, the Favicon of the Docs is not dark-mode friendly, as it uses black-transparent instead of black-white as the color scheme.
I'd suggest using the Favicon that Hop uses in other places for increased consistency.
Otherwise, an SVG Favicon using prefers-color-scheme could also be used to render the favicon as either white or black depending on the browser theme