remove wallet warnings due to 'Network name" mismatch

[MasterHW]

Overview When adding a chain like LUKSO to MetaMask it currently displays a warning (screenshot below) that the network name does not match their record. This because LUKSO != LUKSO Mainnet. Ideally, the UI continues to display the 'neat' name sans mainnet, but the field passed to the wallet contains the true network name to avoid this warning. SEI Mainnet should also get this UI treatment. In production seeing "mainnet" is unnecessary.

Potentially affected by the RainbowKit update https://github.com/gitcoinco/grants-stack/issues/3442

Details