[1.104] Classic ETH-flow does not work as it should be

[elena-zh]

Related to the refactoring done in #5443

1 Pick ETH token as a sell token
2. Select any other token in the buy field (but WETH)
3. Specify ETH sell amount > WETH balance in the wallet
4. Expand classic eth-flow modal and press on the Wrap my ETH and swap button
5. Proceed with wrapping and approving (if needed)
6. Press on the Swap button and place the order

AR: regular ETH-flow order is placed

And this makes impossible to place ETH-flow order with a SC wallet

ER: offchain order with selling WETH token should be placed