Add flag for mouse interaction changes

Bug: 388897603
Flag: EXEMPT adding flag
Test: EXEMPT adding flag
Change-Id: I8cc3f7711fcd378a57314a8a8070374e550b1344
diff --git a/aconfig/launcher.aconfig b/aconfig/launcher.aconfig
index 1726eca..5186740 100644
--- a/aconfig/launcher.aconfig
+++ b/aconfig/launcher.aconfig
@@ -584,3 +584,10 @@
     purpose: PURPOSE_BUGFIX
   }
 }
+
+flag {
+  name: "enable_mouse_interaction_changes"
+  namespace: "launcher"
+  description: "Changes mouse interaction behavior"
+  bug: "388897603"
+}