Add support for a second Superchain for Testnet

[mikeghen]

Currently, only Unichain Sepolia is supported in testnet mode on the frontend. As a result, developing Superchain applications using Uniswap is not feasible, since no other Superchains are available in testnet mode.

Could you please consider adding support for Base Sepolia?

[mikeghen]

Optimism Sepolia would work too.

[plondon]

Moving this to a discussion, the team has plans to add support for OP Sepolia most likely, will try to keep this discussion updated with progress

[mikeghen]

Great! Either network would be fine. Also, any other Superchain chains would be fine too in place of Base. I do think Uniswap should try to have 3 superchain testnets, 2 would be fine for testing what I need, 3 would be more realistic though.

[mikeghen]

@plondon, this is once again an issue that Uniswap has not added more testnets. Another unrelated projects, so now there's 2 projects out in the wild where the lack of support for testnets is costing BIGGLY for these teams in terms of developer hours. Please, can we bump this. I was shocked after all this time to still only see 2 testnets. Monad as a third testnet just is the ultimate joke, they don't even have a MAINNET!?