Auto-Stashing Functionality for Pinned Taskbar

This cl includes :
- Refactor to remove unpinning/pinning in desktop mode with refactor of DisplayController, TaksbarPinningController, and its tests.
- Combined the auto stashing conditions under one method shouldAllowTaskbarToAutoStash() which takes in consideration isTransientTaskbar, isInDesktop, and Always Show Taskbar option is turned on/off in desktop mode.
- enabled taksbar divider popup support in desktop mode.
- Intorduced animation for pinned taksbar when autostadhing is enabled.
- Enable to onSwipeToUnstashTaskbar for TaskbarInputStashController for pinned taksbar in desktop mode.

Test: Presubmit, Unit, Manual
Bug: 381535785
Flag: com.android.window.flags.enable_desktop_windowing_mode
Change-Id: Ie5ecf3a3c72bf8dfadf2d0c908269305fe5bad0b

quickstep/tests/multivalentTests/src/com/android/quickstep/taskbar/controllers/TaskbarPinningControllerTest.kt

@@ -117,6 +117,14 @@ class TaskbarPinningControllerTest : TaskbarBaseTestCase() {
         verify(pinningController, times(1)).animateTaskbarPinning(PINNING_PERSISTENT)
     }
 
+    @Test
+    fun testOnCloseCallback_whenLauncherPreferenceChanged_shouldNotAnimateToTaskbarInDesktopMode() {
+        isInDesktopMode = true
+        whenever(launcherPrefs.get(TASKBAR_PINNING_IN_DESKTOP_MODE)).thenReturn(false)
+        pinningController.onCloseCallback(true)
+        verify(pinningController, never()).animateTaskbarPinning(any())
+    }
+
     @Test
     fun testOnCloseCallback_whenLauncherPreferenceChanged_shouldAnimateToTransientTaskbar() {
         whenever(launcherPrefs.get(TASKBAR_PINNING)).thenReturn(true)
@@ -211,13 +219,4 @@ class TaskbarPinningControllerTest : TaskbarBaseTestCase() {
         assertThat(pinningController.isAnimatingTaskbarPinning).isFalse()
         verify(launcherPrefs, times(1)).put(TASKBAR_PINNING, true)
     }
-
-    @Test
-    fun testRecreateTaskbarAndUpdatePinningValue_whenAnimationEnds_shouldUpdateTaskbarPinningDesktopModePref() {
-        isInDesktopMode = true
-        pinningController.recreateTaskbarAndUpdatePinningValue()
-        verify(taskbarDragLayer, times(1)).setAnimatingTaskbarPinning(false)
-        assertThat(pinningController.isAnimatingTaskbarPinning).isFalse()
-        verify(launcherPrefs, times(1)).put(TASKBAR_PINNING_IN_DESKTOP_MODE, true)
-    }
 }