Feature: Dynamic island support for timer and live activities too

### Description

Flutter doesn't currently have a native dynamic island library or way you gotta do it in swift and get it into flutter so it will a good learning experience for me and we'll get a feature aswell.

### Screenshots

_No response_

The issue mentions Flutter, Swift, timers, and live activities, but names no files, tests, or entry points. Search the repository for timer, live-activity, and iOS integration code first, then determine the native and Flutter surfaces involved. Done means timer and live-activity information is available through Flutter and appears in the iOS Dynamic Island.

Written by the indexing model from the issue text.