[patch] Patch @rainbow-me/rainbowkit to increase width of formatted address

Summary:
Was struggling to get the ConnectButton to fit properly in context of LogInForm. I tried various things with CSS to get the ConnectButton to fit the width of its container, but had no luck.

Looks like the formatted address will always have 9 characters (4 leading, ellipsis, and 4 trailing) regardless of space available. This didn't look great in the context of LogInForm (very narrow) so I bumped it up to 19 characters (8 leading, ellipsis, 10 trailing).

Realize patching a package is a pretty "drastic" thing, but I read carefully through the docs/available props/etc and couldn't find any simpler or cleaner way to extend the width of the ConnectButton.

Depends on D6219

Test Plan:
Here's what it looks like:

and here's what it looks like in other use in landing:

Reviewers: ashoat, tomek

Reviewed By: ashoat

Differential Revision: https://phab.comm.dev/D6220