Create a new RequestPermissionsView that provides a dedicated interface
for checking and requesting notification permissions, matching the
functionality found in the iOS test app.
The view includes:
- Status display with color-coded states (requesting/granted/error)
- Permission status grid showing notifications, exact alarm, and
background refresh status
- Request Permissions button with same functionality as iOS test app
- Platform-specific settings access buttons
- Automatic status refresh on mount
Updated HomeView to navigate to the new view instead of calling
permission request function directly, providing better UX with
dedicated screen for permission management.
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