idle notifier: Support filling water vessels, Shades of Mort'ton

LOOKING_INTO is a generic animation used for numerous activities, and
was previously used as an intermediate animation in a test case. Now
that it is used to trigger idle notifications, a dummy animation has
been inserted to ensure the affected test case will not be broken in the
same way in the future.

Co-authored-by: Nick Wolff <nickwolff2@gmail.com>
Co-authored-by: Arnaud Peralta <arnaud.peralta@gmail.com>

runelite-client/src/main/java/net/runelite/client/plugins/idlenotifier/IdleNotifierPlugin.java

@@ -292,6 +292,7 @@ public class IdleNotifierPlugin extends Plugin
 			case PISCARILIUS_CRANE_REPAIR:
 			case HOME_MAKE_TABLET:
 			case SAND_COLLECTION:
+			case LOOKING_INTO:
 				resetTimers();
 				lastAnimation = animation;
 				lastAnimating = Instant.now();