EWC & Volta compatibility

[lukasschor]

_Deadline: October 31. If we don't make this deadline, please reach out on Slack. _

What is this feature about? (1 sentence)

This makes the Gnosis Safe Multisig available on the energy web chain (EWC) and the corresponding testnet (Volta) via https://ewc.gnosis-safe.io/app and https://volta.gnosis-safe.io/app

Why is it needed? What is the value? For whom do we build it?

• We are in a partnership with the Energy web foundation (cf. blog post
• As part of that, we would like to make the Safe accessible on the EWC.

High-level overview of the feature

• Please note: ETH is not used to pay tx fees, but rather EWT (Energy web token)

• The web app should be available at https://ewc.gnosis-safe.io/app and https://volta.gnosis-safe.io/app

  • Probably requires involvement by Devops for deployment
  • https://[ewc|volta].gnosis-safe.io should automatically forward to https://[ewc|volta].gnosis-safe.io/app

• No need for a desktop app for EWC/Volta at this point.

• Only the 1.1.1 Safe contracts are deployed on EWC\Volta. They have the the same addresses like on mainnet, i.e. e.g. 1.1.1 mastercopy at 0x34CfAC646f301356fAa8B21e94227e3583Fe3F5F

• Transaction-service

  • https://safe-transaction.ewc.gnosis.io
  • https://safe-transaction.volta.gnosis.io
  • Details: Add support for EWF chains safe-global/safe-transaction-service#139

• Some wording changes (should be kept to a minimum for the first version)

  • Network label ("EWC" / "Volta")
  • We have this notification about "Rinkeby - don't send mainnet funds". This one should not be shown for EWC.
    • For Volta, please display "Volta - don't send EWC funds".
  • Please adapt the popup "You Must Change Networks" accordingly.

• Use new id for Google Analytics tracking

  • ewc: UA-83220550-23
  • volta: UA-83220550-24

Misc

• Contracts are deployed on both EWC and Volta at the same addresses like on Mainnet / Rinkeby
  • 1.1.1 Mastercopy on EWC: https://explorer.energyweb.org/address/0x34CfAC646f301356fAa8B21e94227e3583Fe3F5F/transactions
  • 1.1.1 Mastercopy on Volta: https://volta-explorer.energyweb.org/address/0x34CfAC646f301356fAa8B21e94227e3583Fe3F5F/
• There's already a draft PR: feat: Support for Volta and EWC #1046. Feel free to reuse or close.
• The changes requested in this ticket are similar to xDai compatibility #1353

Updates

• Sep 30, Tobi: Add Google Analytics tracking codes

[nicosampler]

@dasanra I'm assigning this ticket to you. I think I already set all the configuration needed in both networks.
Now we need to coordinate with devOps team in order to configure all the environments required.