Add app predictions to secondary display app drawer & fix tab UI.

Bug: 233926067
Test: Manual
Change-Id: I2f45a4b30964b365bf149e8864a3af2ea909a237
(cherry picked from commit 9e5fe63a2290b9c912bf50d66176a34b224f37e8)
Merged-In: I2f45a4b30964b365bf149e8864a3af2ea909a237
diff --git a/res/values/config.xml b/res/values/config.xml
index 1415ed0..d4c08d0 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -85,6 +85,7 @@
     <string name="launcher_activity_logic_class" translatable="false"></string>
     <string name="model_delegate_class" translatable="false"></string>
     <string name="window_manager_proxy_class" translatable="false"></string>
+    <string name="secondary_display_predictions_class" translatable="false"></string>
 
     <!-- View ID to use for QSB widget -->
     <item type="id" name="qsb_widget" />