Small improvement for mini apps: improved transaction previews

Working on Farcaster and Warpcast. Longer thoughts at https://dwr.email

Where is the best place to report bugs 👀? Thanks!

Have noticed that some swaps work on warpcast web vs not working on warpcast mobile. 

This bug isn't exactly mini-app transaction preview related. However a swapPreview action in the sdk would be useful 👀

Interesting it looks like it’s working for me. Can you restart your app once or twice to make sure you have the latest update? 

If it’s still happening, might be some inconsistency we need to fix

interesting! Looks like you're on iOS? I'm on android fwiw.

This bug has persisted for a couple days