Possibility of canceling the bridge during proove of withdrawal

[ipodlitron]

It is necessary to add in the bridge interface the ability to cancel the bridge at the stage proove of withdrawal
When the user reaches the proove of withdrawal stage, he sees the high commission on the Ethereum network.
It is necessary to make it possible to cancel the withdrawal at this stage: the user initiates a transaction in the Mode network and the funds are returned to the mode network.