Add logs for app-to-web

Logs when:
1. Switch to browser
2. Switch to app
3. Changes links settings via the open by default dialog

Bug: 341319391
Flag: com.android.window.flags.enable_desktop_windowing_app_to_web
Test: manual testing
Change-Id: Ibecafb0146a8de0e56916559a87c7c6a0275b614