Reload visible task data when transitioning to Overview

- When onPrepareGestureEndAnimation is called, we already know the end target is Overview, loading thumbnail at this point ensure thumbanil is loaded throughout the transition

Fix: 407525135
Flag: com.android.launcher3.enable_grid_only_overview
Test: Home/app to Overview with gesture/3button
Change-Id: Ie91d3989654ff17df94704275523ca097f786293

quickstep/src/com/android/quickstep/views/RecentsViewUtils.kt

@@ -52,6 +52,7 @@ import com.android.quickstep.views.RecentsView.RECENTS_GRID_PROGRESS
 import com.android.quickstep.views.RecentsView.RUNNING_TASK_ATTACH_ALPHA
 import com.android.quickstep.views.RecentsView.TAG
 import com.android.quickstep.views.RecentsView.TASK_THUMBNAIL_SPLASH_ALPHA
+import com.android.quickstep.views.TaskView.Companion.FLAG_UPDATE_ALL
 import com.android.systemui.shared.recents.model.Task
 import com.android.systemui.shared.recents.model.ThumbnailData
 import com.android.wm.shell.shared.GroupedTaskInfo
@@ -669,6 +670,11 @@ class RecentsViewUtils(private val recentsView: RecentsView<*, *>) : DesktopVisi
             if (enableLargeDesktopWindowingTile()) {
                 animatorSet.play(ObjectAnimator.ofFloat(this, DESKTOP_CAROUSEL_DETACH_PROGRESS, 0f))
             }
+
+            if (enableGridOnlyOverview()) {
+                // Reload visible tasks according to new [mCurrentGestureEndTarget] value.
+                loadVisibleTaskData(FLAG_UPDATE_ALL)
+            }
         }
     }