feat/550 - Fix chain ID issues in Extension

[jurevans]

resolves #550

Testing

Setup & Notes:

• Set up local node, and accounts in extension with balances in local node
• If you don't have balances in testnet, that's fine because tx don't work there either, but you should see the balance eventually update to zero after switching to public testnet
• Optional You can remove the NAMADA_INTERFACE_NAMADA_CHAIN_ID and ...NAMADA_URL, but it doesn't matter, the form will work and just override them - if you remove it, it will default to current public testnet

Testing:

1. With the interface connected to extension, in extension, click the Settings icon, then Network
2. Change between the following Chain ID and URL:
   public-testnet-15.0dacadb8d663
https://proxy.heliax.click/public-testnet-15.0dacadb8d663/

OR

${CHAIN_ID} (whatever your local chain ID is)
http://localhost:27657 or http://127.0.0.1:27657 - you can ignore the proxy
3. You should see that the interface re-fetches balances for that chain. When using your local node, transfers should work (NOTE Testnet transfers are not working right now) - if you have balances on testnet, you will see those (eventually, it is slow)

Screenshots

Update network form

[github-actions]

🚀 Deployed on https://pull-request-551--wallet-development-heliax-dev.netlify.app