When, and how will they implement lightning in the Proton wallet? Self custodial lightning is difficult. Could the Muun wallet approach with submarine swaps to onchain bean hybrude/ intermediate solution? I tried the Proton wallet and it works great for on-chain, but the lack of lightning makes it useless for me. Proton Wallet is something I would like to use for small and medium size transaction to other Proton users, and on-chain is not the best for that. For savings I use other wallets with cold storage capabilities. Proton Wallet has great potential, but is missing something important.