chore: refactor multi-hop state tracking to avoid duplicate states and associated logic

[woodenfurniture]

Description

Refactors the state management of multi-hop trade execution to remove duplicate and redundant states and the resulting logic required to keep them aligned. As a result, there is less responsibility of the view layer to manage and know about the working of trades at a higher level and allows them to dispatch narrow-context actions to redux.

• State is deduplicated to ensure state is unique and purpose specific
• State is nested to ensure the scope of each layer of nesting is easy to track and optional parts of trades (e.g the second hop and approvals) can be skipped without convoluted logic
  • callbacks to track error states of hooks owned by child components are now removed
  • state changes are dispatched on a per-step basis rather than using blanket incrementation, which simplifies logic at the cost of verbosity
• The numerous new redux actions ensure state is consistent and integrity is maintained to avoid corrupted state

Pull Request Type

• 🐛 Bug fix (Non-breaking Change: Fixes an issue)
• 🛠️ Chore (Non-breaking Change: Doc updates, pkg upgrades, typos, etc..)
• 💅 New Feature (Breaking/Non-breaking Change)

Issue (if applicable)

closes #5740

Risk

All of the work here is focused on multi-hop trades (behind feature flag), but there is a risk these changes could affect the functionality of the production trade and approval state management.

Testing

Test trades and erc20 approvals are still working as expected.

Engineering

Operations

Screenshots (if applicable)

Multi-hop UI still working correctly with mock hooks

[woodenfurniture]

Current dependencies on/for this PR:

• develop
  • PR chore: refactor multi-hop state tracking to avoid duplicate states and associated logic #5745 👈
    • PR fix: incorrect amounts in multi-hop lifi quotes #5753

This stack of pull requests is managed by Graphite.

[gomesalexandre]

First pass, looks excellent and more declarative - will stamp after a functional regression pass

[gomesalexandre]

Tested locally:

• Confirmed approval checks are still happy with allowance granted

• Confirmed approval checks are still happy without allowance granted

• EVM trades are going through