Added logic to renameWallet in useWallet.js that checks if the wallet to be renamed is the currently active wallet, sets newWalletName for the currently active wallet. Changes planned: currently the changeWalletName success modal reads `newWalletName has been changed to newWalletName` instead of `oldWalletName has been changed to newWalletName`. As well, I did not include the delete wallet button for the currently active wallet, but this can be added if it is desired.