Add a countdown for NEAR -> ETH transfers confirmations

[0xEffAlt]

From my understanding, tokens transfers from NEAR to ETH can take from 0 to ~16 hours to confirm. This is quite a wide range and I think that not having an estimated time is poor UX since the user:

• might check for confirmation multiple times before the transfer is effectively confirmed,
• doesn't know what to expect.

Proposal

Add an approximate countdown showing the number of hours until the next batch of confirmations on Ethereum, as added in the pic below in green. The text "this can take around 16 hours" might be modified as well.

Edit: another solution (only works for advanced users) might be to provide a link on Etherscan to the Ethereum smart contract responsible for proofs validation, so that the user can check when were the last confirmations and use that to anticipate the next.