Replace ethersproject/provider

[simonovic86]

Think about and implement the alternative for ethersproject/providers. One of the combinations that could work is:

• https://github.com/hyperdivision/nanoeth
• https://infura.io/docs/ethereum/wss/introduction

What's cool about that library is that in browser we can just use a normal ethereum provider from window.ethereum that we already use in other parts of our systems.