jit: Improve JIT zeroconf channel opening

[f321x]

Related PRs:

• Check confirmed zeroconf channel funding address and amount #9624
• Handle zeroconf lightning requests in QT gui #9598
• Handle just in time channels in qml request creation #9606
• Additional regtest tests for just in time channels #9611
• Disable mpp flags in invoice creation if jit channel is required and consider available liquidity  #9587
• Add mechanism to block htlcs from settling back #9586
• Refactor on_channel_open to accept incoming channels if the source is a trusted zeroconf node #9588
• Handle unfunded zeroconf channels in update_unfunded_state #9590

Changes:

• make it possible to have multiple JIT channels with single LSP by using the deterministic remote scid alias created on channel open instead of the static node id hash as scid alias of the jit channel on LSP side
• add error handling to correctly wind down and remove channels and local txs if the jit opening failed (e.g. if lsp didn't get preimage from client)
• disable JIT/zeroconf on LSP side if exceptions occur to prevent further issues
• only finalize jit opening if funding tx got successfully accepted to our mempool
• add funding tx fee to opening fee of channel so client pays for (funding) mining fees
• use max(absolute fee, relative fee) instead of failing zeroconf opening if fee is below min abs fee
• add checks to LSP and client side to prevent insane fees

[f321x]

Note: we should only signal OPTION_ZEROCONF_OPT in the init messages if the peer is also our configured trusted zeroconf node.

[f321x]

will replace this, it's pretty outdated.