Apply for Axelar's express gateway

[adamewozniak]

We need to follow this procedure:

https://docs.axelar.dev/dev/general-message-passing/express#integrate-your-app-with-the-express-service

This includes:

1. Providing liquidity during express transactions
2. Upgrading the contracts to the axelar express interface
3. Submitting the forms to axelar