Intercept clicks for non-supported split targets on workspace

* If we're in split selection state we disable the following
- G icon on PSB
- Lens icon on PSB
- Smartspace
- Widgets

Bug: 295467097
Test: Enter split contextual and observe split instructions
view going boing when tapping on unsupported target
Flag: com.android.wm.shell.enable_split_contextual

Change-Id: Ia7783472f3de9359c2784788be5f35596cbc8deb

quickstep/src/com/android/launcher3/uioverrides/QuickstepInteractionHandler.java

@@ -28,10 +28,8 @@ import android.util.Log;
 import android.util.Pair;
 import android.view.View;
 import android.widget.RemoteViews;
-import android.widget.Toast;
 import android.window.SplashScreen;
 
-import com.android.launcher3.R;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.logging.StatsLogManager;
 import com.android.launcher3.model.data.ItemInfo;
@@ -63,8 +61,7 @@ class QuickstepInteractionHandler implements RemoteViews.InteractionHandler {
             // Log metric
             StatsLogManager.StatsLogger logger = mLauncher.getStatsLogManager().logger();
             logger.log(LAUNCHER_SPLIT_WIDGET_ATTEMPT);
-            Toast.makeText(hostView.getContext(), R.string.split_widgets_not_supported,
-                    Toast.LENGTH_SHORT).show();
+            mLauncher.handleIncorrectSplitTargetSelection();
             return true;
         }
         Pair<Intent, ActivityOptions> options = remoteResponse.getLaunchOptions(view);