Support ROFL transactions #2175
Description
When following the ROFL Quickstart from the docs using my web wallet, I noticed that all ROFL transactions are marked with a warning icon and a message saying Unrecognized transaction, method rofl.. This can be confusing for the users, as ROFL transactions are more newer thing that should be recognized by the wallet.
It would be useful to drop the message and add a similar icon that is used in Oasis Explorer for ROFL transactions.
