Using correct window bounds in multi-window for fallback activity

Also fixing a bug where insets were not updated when recreating deviceprofile

Bug: 77875376
Change-Id: I7806cf949da415ef171ccf2f4ab3e8f2b7606220

src/com/android/launcher3/LauncherRootView.java

@@ -100,6 +100,7 @@ public class LauncherRootView extends InsettableFrameLayout {
     }
 
     public void dispatchInsets() {
+        mLauncher.getDeviceProfile().updateInsets(mInsets);
         super.setInsets(mInsets);
     }