fix: lowercase `metamask_accountsChanged` address casing to match `eth_accounts`#40

jiexi wants to merge 2 commits intomainMetaMask/connect-monorepo:mainfrom

jl/WAPI-834/accountsChanged-vs-initial-connection-address-casingMetaMask/connect-monorepo:jl/WAPI-834/accountsChanged-vs-initial-connection-address-casingCopy head branch name to clipboard