Native botification modules for macOS and Windows

[fpena]

Context

After researching existing React Native notification libraries, we found limited support for desktop platforms. Most libraries like react-native-toast-message and react-native-toast-notifications focus on mobile, while react-native-rooster (the only cross-platform option) didn't work correctly in our tests.

We prefer a reliable, dependency-free solution for displaying toast notifications.

Slack thread with more context: https://infinitered.slack.com/archives/C22K52MK2/p1760587029746029

Also, Lizzi suggested it'd be worth reaching out to the React Native Windows team, since they've worked on building out design system components for Microsoft.

Proposal

Create native modules for both macOS (using Swift/Objective-C with NSUserNotificationCenter) and Windows (using C++/WinRT with Windows.UI.Notifications). This approach would give us full control over the notification behavior and positioning, similar to successful implementations in VS Code (bottom-right) and Raycast (minimal, native-styled).

The modules should support basic toast functionality with customizable duration, positioning, and action buttons while maintaining platform-specific UI conventions.