Rename `enterDesktop` to `moveFocusedTaskToDesktop`

As other shortcut hooks are named as `moveFocusedTaskToX` rename desktop
one to `moveFocusedTaskToDesktop`.

Test: Manual
Test: atest DesktopTasksControllerTest
Bug: 328391949
Flag: ACONFIG com.android.window.flags.enable_desktop_windowing_mode DEVELOPMENT
Change-Id: I4412f79d0960e83ec37c02293876647ab4936608
9 files changed