refactor: Unflatten downstream references to metamask Redux slice (5/5)

[MajorLift]

Description

Related issues

• 5/5 PRs that will close https://github.com/MetaMask/MetaMask-planning/issues/2894
• Blocked by refactor: Unflatten metamask Redux slice and convert to TypeScript (2/5) #28929
  • Blocked by refactor: Unflatten MetamaskController stores (1/5) #28723
    • Blocked by fix: Move foreground state properties from metamask slice to appState slice #28703

Manual testing steps

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Screenshots/Recordings

Before

After

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[github-actions]

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