Sign to Believe + update buttons layout to start on Believe

[RadarDAO]

Some good feedback I'm getting is that the $ (even 10$) is too much for people to just drop without thinking, so to increase usage. We want to create a free tier on every project, when your wallet can 'sign' the project to show there belief.

This is a simple wallet signature, which shows their 0x.../user name / etherscan. It allows people to signal & build reputation, this will become the basis for #201.

Check out examples here: https://launch-testing-56809a-a28-18cf5d11f6289.webflow.io/project