Updating launcher settings so that they become split-screen

Following this guide:
https://developer.android.com/guide/topics/large-screens/activity-embedding#extract_an_activity_from_a_split_to_full_window

Bug: 204463748
Test: Open the settings app and open multiple settings, for now
only the options inside of the launcher3 package work
Flag: ACONFIG com.android.launcher3.Flags.enableTwoPaneLauncherSettings DEVELOPMENT

Change-Id: Ie6a9eb3760171da92d94cf06376127b02afff8df
diff --git a/aconfig/launcher.aconfig b/aconfig/launcher.aconfig
index f34105a..255550e 100644
--- a/aconfig/launcher.aconfig
+++ b/aconfig/launcher.aconfig
@@ -86,6 +86,13 @@
 }
 
 flag {
+    name: "enable_two_pane_launcher_settings"
+    namespace: "launcher"
+    description: "Enables two panel settings when on large enough displays"
+    bug: "204463748"
+}
+
+flag {
     name: "enable_shortcut_dont_suggest_app"
     namespace: "launcher"
     description: "Enables don't suggest app shortcut for suggested apps"