Screen Time Tracking for 1+ App

[laureldernbach]

This feature is crucial to the functionality of Breeze. For this feature, we will need to create some sort of authorization flow in which the user allows Breeze to access their screentime data, then Breeze can use it to trigger a push notification.

Initially, we can hardcode this for a specific app and a specific amount of time spent on that app.

Ideally, the app will eventually allow the user to select with apps they would like to track their screen time on, and how much time they would like to pass before a notification.