LN

Since we have a really nice block explorer we might want to cross-link with some information about the Lightning network (which points to Bitcoin on-chain information anyway). I've been collecting some stats over the last months about channel lifetime and node lifetime, and I think it'd be an interesting facette to add to the explorer. We'd only be indexing and displaying publicly available information, and cross-link public channel-events with the matching transactions.

## Information
### Channel lifetime information

- General channel stats (capacity, % of time enabled, lifetime)
- Cross-link with on-chain events (funding TX, close/sweep transactions, splices)
- Availability plot (disabled vs. enabled)

### Node lifetime information

- Node stability metrics
- Channels for a node
- Evolution of various metrics over time (capacity, disabled vs. enabled channels, channel duration)