Don't connect to metamask if `?wallet=` url param is provided

[Slin Lee]

Right now it blends the results from querying metamask with the results for different wallet from polygonscan.

• port the check for 100 tokens to polygonscan.
• Hide the 'use polygon network message'

[Slin Lee]

After #46, #47, #48 the UX is improved. Technically, it's still checking for Metamask first.

[Sahil Lavingia]

Anything left to do here?

[Slin Lee]

I think it's good now! 👍