Fix launching window bounds for immersive apps

Test: Open an immersive app (e.g. fullscreen YT video), ensure it fills
the screen; open a non-immersive app (e.g. Calculator), ensure it only
fills up to the top of the taskbar.
Fixes: 200036592

Change-Id: Id815bbc8140cbaf1e61ac587ae1f1325e7ec5b72

quickstep/src/com/android/launcher3/QuickstepTransitionManager.java

@@ -439,9 +439,9 @@ public class QuickstepTransitionManager implements OnDeviceProfileChangeListener
                         4 - rotationChange);
             }
         }
-        // TODO(b/196637509): don't do this for immersive apps.
         if (mDeviceProfile.isTaskbarPresentInApps) {
-            bounds.bottom -= mDeviceProfile.taskbarSize;
+            // Animate to above the taskbar.
+            bounds.bottom -= target.contentInsets.bottom;
         }
         return bounds;
     }