update wording on peer claim of contributions

[h-m-m]

Why

I think our team usage of peer-to-peer is potentionally confusing to community members new to this application. That phrase means different things in different contexts, so I'd like to reduce potential confusion.

Pre-Merge Checklist

• All new features have been described in the pull request
• Security & accessibility have been considered
• High quality tests have been added, or an explanation has been given why the features cannot be tested
• New features have been documented, and the code is understandable and well commented
• Entry added to CHANGELOG.md if appropriate
• All outstanding questions and concerns have been resolved
• Any next steps that seem like good ideas have been created as issues for future discussion & implementation

What

I'm open to further changes to this if you'd like to improve the wording

Testing

Mobile breakboint:

Wider breakpoint:

Next Steps

n/a

Accessibility

This will hopefully improve legibility of this warning message

Security

This is a wording change that should have no security impact

I suppose we're now leaking a small amount of info about who has or has not entered their contact info. That is certainly a hard think to leverage in isolation, though