Add Ko-fi Icon to Social Icons Block

[oskar-ok-strom]

What problem does this address?

While it's possible to add Patreon and many other social icons,
Ko-fi (probably the main alternative to Patreon), is not available
so I would like to have it added so we can more smoothly share it
with our other social icons.

What is your proposed solution?

I attached an SVG icon from Ko-fi to this ticket.
I converted it to single color to match the others.
ko-fi_logo.zip

SVG's of the Ko-fi logo are aslo available on their website here:
https://more.ko-fi.com/brand-assets

Thank you! If the icon needs any changes I'm happy to help.

[yogeshbhutkar]

Duplicate of #68901. A PR already exists for this issue.

[oskar-ok-strom]

@yogeshbhutkar Thank you for letting me know, I'll close the issue.