Add GHST Stake to the Umbria Narni Bridge

The Umbria Narni Bridge has implemented the GHST token, and is facilitating cheaper migration of GHST between the Ethereum <--> Polygon networks, compared to the official Polygon bridge. The Umbria Narni bridging cost is about 1/2 of the official polygon bridge cost and is also much faster (4 minutes, as opposed to > 1 hour).

The Umbria Narni bridge protocol can bridge a maximum of 20% of its total GHST liquidity, per bridging event. For example, with $100k of GHST tokens in one side of the pool, the bridge can migrate a maximum of $20k of GHST per single transaction.

Currently there is ap…