Complete UIWindowRequestPermission implementation for general permission requests

[jelveh]

The UIWindowRequestPermission component needs to be completed to serve as a standardized permission request dialog that apps can use to request various types of permissions from users. This will provide a consistent and secure way for apps to request permissions across the Puter platform.

Current State

The UIWindowRequestPermission exists but needs to be finalized and expanded to handle different types of permission requests in a flexible and reusable way.

Requirements

• Generic permission request dialog that can be customized for different permission types
• Clear presentation of what permission is being requested
• Explanation of why the permission is needed
• Standard accept/deny actions
• Ability to remember user's choice (where appropriate)
• Consistent styling with Puter's design system

Proposed Permission Types Support

• File system access (read/write to specific directories)
• Network access
• System API access
• Background processing permissions
• User data access (email, etc)