Not using SIDELOADED_LAUNCHER name

It may imply something malicious, while we simply mean a third-party
launcher.

Bug: 79437767
Change-Id: I2e169fda9404ca7a042e40877ed6f4b7d2d723a1
diff --git a/protos/launcher_log.proto b/protos/launcher_log.proto
index 055ade5..ea12016 100644
--- a/protos/launcher_log.proto
+++ b/protos/launcher_log.proto
@@ -92,7 +92,7 @@
   TASKSWITCHER = 12; // Recents UI Container (QuickStep)
   APP = 13; // Foreground activity is another app (QuickStep)
   TIP = 14; // Onboarding texts (QuickStep)
-  SIDELOADED_LAUNCHER = 15;
+  OTHER_LAUNCHER_APP = 15;
 }
 
 // Used to define what type of control a Target would represent.