Removes Sandbox from launcher task.

Instead, adds it to the gesture-exclusion activities
to prevent normal gesture handling.

Bug: 148542211
Change-Id: Ie04d2e71346a0c039e73fcc386cedc1b74fadadb

quickstep/AndroidManifest-launcher.xml

@@ -52,7 +52,7 @@
             android:configChanges="keyboard|keyboardHidden|mcc|mnc|navigation|orientation|screenSize|screenLayout|smallestScreenSize"
             android:resizeableActivity="true"
             android:resumeWhilePausing="true"
-            android:taskAffinity="${packageName}.launcher"
+            android:taskAffinity=""
             android:enabled="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

quickstep/AndroidManifest.xml

@@ -99,7 +99,6 @@
             android:name="com.android.quickstep.interaction.GestureSandboxActivity"
             android:autoRemoveFromRecents="true"
             android:excludeFromRecents="true"
-            android:taskAffinity="${packageName}.launcher"
             android:screenOrientation="portrait">
             <intent-filter>
                 <action android:name="com.android.quickstep.action.GESTURE_SANDBOX" />

quickstep/res/values/config.xml

@@ -17,7 +17,9 @@
     <string name="task_overlay_factory_class" translatable="false"/>
 
     <!-- Activities which block home gesture -->
-    <string-array name="gesture_blocking_activities" translatable="false"/>
+    <string-array name="gesture_blocking_activities" translatable="false">
+        <item>com.android.launcher3/com.android.quickstep.interaction.GestureSandboxActivity</item>
+    </string-array>
 
     <string name="stats_log_manager_class" translatable="false">com.android.quickstep.logging.StatsLogCompatManager</string>