Return Value From ERC20 Transfer Ignored

[nmlinaric]

mintERC20 function ignores the return value from the transfer function of the ERC20 token. The transaction can succeed even if a token transfer fails. This could have downstream effects on the accounting of tokens by the bridge.

Implementation details

mintERC20 function should check return value of transfer.

Testing details

Minting tests with success and fail cases.

Acceptance Criteria

Unit and e2e passing