[ISSUE] Merge Individual Permission Requests into Active Group Requests

[BraydenLangley]

Description

When a group permission request is active and an ensure call is made for a permission that belongs to that group (e.g., via a component like IdentitySearch), the individual request can overlap with the group request.

Problem

This results in multiple modals appearing for the same permissions, creating a confusing UX.

Steps to Reproduce

1. Clone PeerPay repo (group-perms-support branch)
2. npm run start
3. Ensure all permissions are revoked for localhost:
4. You should see two modals popup (single request, and group)

Expected Behavior

• If a group permission modal is active, any ensure calls for permissions within that group (same originator) should merge into the existing group request.
• The outcome of the individual ensure should depend on the user’s response to the group modal (grant or reject).
• The group permission modal should have a higher Z-index than individual modals.

Additional Information

Applies to permissions grouped under protocol, basket, certificate, and spending.