Create working testnet environment

[kallemoen]

Aim: Set up a fully functional front-end targetting our testnet environment, such that we can deploy features in our front-end there and test before pushing to production.

[amaljosea]

Currently, the web app only supports mainnet, which makes it impossible to test new features.

So now the new features that involve some transaction in the chain directly go to production.

See a sample comment here #114 (comment). Please see the loom video in that PR. (#114 (comment))

The goal of this issue is to research and document how we can support test net.

[amaljosea]

See some previous attempts:

• feat: add dropdown menu for switching from mainnet to testnet #50
• feat: add dropdown menu for switching from testnet to mainnet #49

[amaljosea]

Hi @FossilFrank @kallemoen

Please check if I am moving in the right direction.

Questions:

• Do we have a testnet where all the smart contracts are deployed? Which one?
• Do you think we need a separate indexer for testnet?

https://www.loom.com/share/6e67f476b4374cb18e8409222b2fa533?from_recorder=1&focus_title=1

[FossilFrank]

Hey @amaljosea, your assessment seems correct. The testnet contract is deployed at 0xd5a716d967a9137222219657d7877bd8c79c64e1edb5de9f2901c98ebe74da80, and yes we'll probably need to make a separate indexer deployment for testnet.