Adding code to open DWP settings of a recent task

Will transition to an API for opening settings if this CL lands:
ag/5338673.

Bug: 118319143
Test: manual test on a prototype
Change-Id: Ia40576e0cd6196bfb0a0e8657916bbadff4c0b59
diff --git a/protos/launcher_log.proto b/protos/launcher_log.proto
index b3ed365..4129ae8 100644
--- a/protos/launcher_log.proto
+++ b/protos/launcher_log.proto
@@ -113,6 +113,7 @@
   TASK_PREVIEW = 15;
   SPLIT_SCREEN_TARGET = 16;
   REMOTE_ACTION_SHORTCUT = 17;
+  APP_USAGE_SETTINGS = 18;
 }
 
 enum TipType {