Extend DesktopVisibilityController Funcationality to handle taskbar corner...

Extend DesktopVisibilityController Funcationality to handle taskbar corner radius in desktop windowing mode

This cl includes
	- adding support for listenting into when desktop window mode task is resizing and we need to adjust taskbar corner radius.

Test: Presubmit
Bug: 348335379
Flag: com.android.window.flags.enable_desktop_windowing_mode
Change-Id: Ic6ea3dc1353df7fa4b8079106f20fade0f740683