Add HANDLE_OUTSIDE_TOUCH flag to decor menus.

Adds the flag HANDLE_OUTSIDE_TOUCH to maximize menu and handle menu and
uses the available ACTION_OUTSIDE event to close menus on external
touch, reducing the need for the global InputMonitor.

Additionally, adds a touch listener to the maximize menu root view to
support listening for outside touches.

Bug: 349135068
Test: Manual, outside touches still work in both menus with and without
the additional windows above status bar flag.
Flag: EXEMPT refactor

Change-Id: I8e4a6f8e9571fa3d64e9d3c95074e306c747ea0f