Add idle notification for mixing ultracompost (#6052)

runelite-api/src/main/java/net/runelite/api/AnimationID.java

@@ -158,6 +158,7 @@ public final class AnimationID
 	public static final int FARMING_CURE_WITH_POTION = 2288;
 	public static final int FARMING_PLANT_SEED = 2291;
 	public static final int FARMING_HARVEST_FLOWER = 2292;
+	public static final int FARMING_MIX_ULTRACOMPOST = 7699;
 
 	// Lunar spellbook
 	public static final int ENERGY_TRANSFER_VENGEANCE_OTHER = 4411;

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

@@ -208,6 +208,8 @@ public class IdleNotifierPlugin extends Plugin
 			case MAGIC_MAKE_TABLET:
 			/* Prayer */
 			case USING_GILDED_ALTAR:
+			/* Farming */
+			case FARMING_MIX_ULTRACOMPOST:
 			/* Misc */
 			case SAND_COLLECTION:
 				resetTimers();