fix: only init payjoin when payment network is bitcoin

[kumulynja]

The first receive tab and network that seems to be loaded initially is Lightning. For this an amount has to be entered and no default invoice should be generated, so returning immediately in the updateWalletBloc function is added for Lightning.
And then this PR also adds a check to make sure to only init payjoin for the bitcoin network, this way we avoid the liquid address being used to init the payjoin.

[kumulynja]

This should fix #370

[kumulynja]

@i5hi This seems to fix it, but I have a doubt though. I am checking on the payment network now to init payjoin or not.
Do you think it is maybe better to also base it on the wallet that is selected, making sure the secure onchain wallet is selected too, instead of just the network?

[kumulynja]

@i5hi This seems to fix it, but I have a doubt though. I am checking on the payment network now to init payjoin or not. Do you think it is maybe better to also base it on the wallet that is selected, making sure the secure onchain wallet is selected too, instead of just the network?

As clarified by @i5hi and @ethicnology out-of-band, we should add a check for BaseWalletType.Bitcoin.

[ethicnology]

@i5hi This seems to fix it, but I have a doubt though. I am checking on the payment network now to init payjoin or not. Do you think it is maybe better to also base it on the wallet that is selected, making sure the secure onchain wallet is selected too, instead of just the network?

As clarified by @i5hi and @ethicnology out-of-band, we should add a check for BaseWalletType.Bitcoin.

#381