Adding open by default settings dialog

Creates an extra button in the open by default windowing pill. When
clicked, an open by default settings dialog is created which allows the
user to set how links open by default, in the app or in the browser.

Bug: 359262490
Test: manual testing
Flag: com.android.window.flags.enable_desktop_windowing_app_to_web

Change-Id: I792886108b27b141a7ef39821246e2d68fb4b2fa