[BISON-19] Add impersonation functionality for users and update permissions

[JMRhodes]

This pull request introduces user impersonation functionality to the application, allowing certain users to impersonate others through the admin panel. The implementation includes UI changes, permission checks, and the integration of a third-party package to support this feature.

User Impersonation Feature:

• Added the stechstudio/filament-impersonate package to composer.json to provide impersonation capabilities.
• Updated the EditUser page to include an "Impersonate User" action in the header actions, grouped under an "Actions" button, using the new package.

Permissions and Role Management:

• Added the admin.users.impersonate permission to the config/roles_permissions.php configuration.
• Implemented canImpersonate and canBeImpersonated methods in the User model to restrict impersonation so that only users with the SUPER_ADMIN role or the admin.users.impersonate permission can impersonate, and to prevent SUPER_ADMIN users from being impersonated.

Jira:
https://moderntribe.atlassian.net/browse/BISON-19

[Copilot]

Pull Request Overview

This PR introduces user impersonation functionality to allow authorized administrators to impersonate other users through the admin panel. The implementation integrates a third-party Filament package and adds proper permission controls.

• Added stechstudio/filament-impersonate package dependency for impersonation capabilities
• Implemented permission-based access control with canImpersonate and canBeImpersonated methods in the User model
• Updated the EditUser admin page to include an "Impersonate User" action in a grouped button interface

Reviewed Changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 1 comment.

File	Description
config/roles_permissions.php	Added admin.users.impersonate permission to SUPER_ADMIN role
composer.json	Added stechstudio/filament-impersonate package dependency
app/Models/User.php	Implemented impersonation permission methods with role-based access control
app/Filament/Resources/Users/Pages/EditUser.php	Added impersonate action to EditUser page header with grouped button UI

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[dpellenwood]

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