Description

Resolves state issue in trade UI where lack of non-errored quoted is treated as loading state, resulting in infinite spinner when all swappers failed to return a quote.

Issue (if applicable)

closes #7789

Risk

High Risk PRs Require 2 approvals

Low risk, though considering the massive usage of the swapper feature we should review it with added caution.

What protocols, transaction types, wallets or contract interactions might be affected by this PR?

Affects quotes and loading state.

Testing

The easiest way to test this is by trying to get a quote with assets which are THOR only (e.g UTXOs, or UTXO<->ATOM would work too), and then blocking the swap* domain.
To do so, proceed as follow:

• Try and get a first quote, which should go through
• Then, filter network requests by thor swap. You'll notice request/s matching the swap?amount= pattern, click on any
• Block request URL, not domain for the request
  
• In your list of filtered network requests, click edit, and replace everything after swap with a star:
  
• Ensure the next time you try and get a quote (or after auto-refetch timeout), you see the "No Rate Available" copy instead of infinite loading state previously
  
• You can do the same in develop/prod as a sanity check
• ⚠️ Don't forget to remove the network request blocking after you've done testing this, or your THOR requests will be perma-rugged until you do

Engineering

Operations

• 🏁 My feature is behind a flag and doesn't require operations testing (yet)

Screenshots (if applicable)

Demo using monkey patch to force simulated thorchain swapper error:

https://jam.dev/c/39fb191a-25b1-4f15-8505-c02454b8a60a