Add Commhaus Foundation logo to footer

[insectengine]

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[gsmet]

I'm not sure having the image part transparent is a good choice?

[insectengine]

@gsmet - added a tinted background behind the CF logo to separate from the quarkus footer background image.

[holly-cummins]

I didn't see it part-transparent, but I think the black blackground looks a bit inconsistent with what we've done elsewhere on the footer in terms of the text. 'CommonHaus Foundation' and 'Quarkus is a CommonHaus project' is the only text that's on a black background. Even the 'Quarkus' logotype has a transparent background.

Also, with the background, the black block and surrounding text doesn't seem to be aligned quite right. On the left side the black border is aligned with the rest of the text, so the commonhaus text is indented. But on the right side the black border is roughly aligned with the right edge of the text. The right margins are ragged so 'edge' is a loose concept; I suspect in terms of layout everything actually is aligned, but the visual effect is misaligned.

[insectengine]

I've adjusted the opacity to be more visible on the mac laptop screen.

The Commonhaus Foundation has it's own logo spacing requirements. In order to make it easier for projects, we've made custom CF logos with project tags (so they don't need to worry about adding enough spacing for the logo on their sites).

https://github.com/commonhaus/artwork/tree/main/foundation/brand/project/svg

The text alignments for the "foo is a Commonhaus Foundation project" is part of this file and is consistent across the projects.