[infra] Add support donation button

[oliviertassinari]

I saw this from https://github.com/badges/shields/issues/new?assignees=&labels=service-badge&projects=&template=3_Badge_request.yml

I wonder if this would make sense in our context.

Preview: https://github.com/oliviertassinari/material-ui/blob/donation-footer/.github/ISSUE_TEMPLATE/1.bug.yml

[mui-bot]

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[DiegoAndai]

@oliviertassinari this would add the line to all issues, right? I'm not a fan of that. I think we should keep the issues clean and add the donation callouts in other places. What do you think?

[oliviertassinari]

this would add the line to all issues, right?

@DiegoAndai it didn't in badges/shields#10221

[DiegoAndai]

Oh ok, then I'm ok with it 👍🏼

I wonder what @samuelsycamore thinks

[oliviertassinari]

Ok, so potentially, we could merge this. It feels like it something that should be removed at the point where we find a better monetization model than commercial licensed code. But until then, maybe it makes sense? Like it communicates to developer that we are trying to make it work as much as possible with open source.

The only cons I can think of is that it's unlikely to make meaningful differences, so would be noise for future issue creators, it's not if you donate $10 we will fix your issue.

[mnajdova]

This makes sense to me 👍

[oliviertassinari]

Applied to Base UI and Pigment CSS. I didn't do it on Toolpad and MUI X since those will have more obvious commercial parts. We could still do it though.