(Bloomberg) When Bitcoin development company Lightning Labs first launched the Lightning Network in 2018, it was all the rage. The protocol, built on top of the Bitcoin blockchain, was designed to make cryptocurrency transactions faster and cheaper.Most Read from BloombergIsrael Latest: Army Says Hamas Officials Dead; Over 600,000 in Gaza Flee SouthUS Pushes to Contain Israel-Hamas War, Warns Iran About EscalationUS to Tighten Curbs on China’s Access to Advanced Chip TechRite Aid Files for Ba