poc: dynamic switch network confirmation

[matthewwalsh0]

Description

POC to verify an implementation for the following:

• Remove QueuedRequestController and middleware.
• Show switch network confirmation only if there are pending confirmations for the same origin.
• Display origin in switch network confirmation.
• Add pending confirmation alert to add network confirmation.
• Add pending confirmation alert to permission confirmation.
• Show toast if origin changed in confirmation within last minute.
• Remove rejection of all pending approvals on network change.
• Reject only pending approvals for site switching network.
• Remove additional references to the global network to support navigation between confirmations on alternate chains.

No unit tests and example copy only given POC.

Related issues

Manual testing steps

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.