Fixing regression where icon view became focusable

Description: in ag/24721149 we stopped inflating IconView
from Task.xml and instead used a viewstub. When creating
files to fill the viewstub, we forgot to place the correct
attributes on Icon_view.xml. We did place them correctly
elsewhere. Anyways this is why we were seeing focusable
icons.

Flag: None

Test: Built locally, will follow up with automation

Bug: 307461880

Change-Id: I45f895c8545a80f80c79709180f2878476d10221
diff --git a/quickstep/res/layout/icon_view.xml b/quickstep/res/layout/icon_view.xml
index a33066f..e8c9cc5 100644
--- a/quickstep/res/layout/icon_view.xml
+++ b/quickstep/res/layout/icon_view.xml
@@ -16,4 +16,6 @@
 -->
 <com.android.quickstep.views.IconView xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
-    android:layout_height="match_parent" />
\ No newline at end of file
+    android:layout_height="match_parent"
+    android:focusable="false"
+    android:importantForAccessibility="no"/>
\ No newline at end of file