The Muun instructions shouldn't suggest to select to receive via Bitcoin Network

[riccardobl]

The difference between lightning and 1st layer is just hinted on the fourth step, while the 3rd step suggest to use the 1st layer for "saving".

I think this might cause confusion for both the customer and the business owner, since both (depending on their level of knowledge) might expect to receive the payment on 1st layer in the same way of lightning, just with a 10 minutes delay. But we all know that this is not the case, since it might take much longer (depending on the mempool congestion) and might cost a big fee.

So i propose to remove this part from the 3rd step and instruct to use only the lightning option.

Receiving on 1st layer could be discussed at the end of 4th (or in a new 5th) step, but i think it should be probably left out of this flyer entirely, since talking about savings and 1st layer transactions requires to talk about fees, hardware wallets etc... so it should be probably handled by another flyer to avoid information overload