[37/N] Desks: Unminimize when moving task to front

moveTaskToFront() may be used for minimized tasks. When multiple
desktops is enabled, these need to be reparented from the minimization
container to the desk container, otherwise they will only go to the
front of the minimized tasks, but remaing behind non-minimized tasks and
the Home/DesktopWallpaper.

Flag: com.android.window.flags.enable_multiple_desktops_backend
Bug: 391485148
Bug: 393978427
Test: Open 2 desktop apps, minimize one, unminimize it from the taskbar
- verify it becomes visible in front of all tasks

Change-Id: Idcb266a6215ef82efbed6f5d003335b26216361d