Kingdom Plugin: fix throne completion state check (#5874)

Now uses the correct varp from the quest list completion state script (1358).

Additionally, allows the infobox to show if the quest is in progress to allow users to check favor during the last part of the quest. 

Closes #1980

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

@@ -47,6 +47,13 @@ public enum VarPlayer
 
 	NMZ_REWARD_POINTS(1060),
 
+	/**
+	 * 0 : not started
+	 * greater than 0 : in progress
+	 * greater than 99 : completed
+	 */
+	THRONE_OF_MISCELLANIA(359),
+
 	/**
 	 * Experience tracker goal start.
 	 */

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

@@ -342,7 +342,6 @@ public enum Varbits
 	 */
 	KINGDOM_FAVOR(72),
 	KINGDOM_COFFER(74),
-	THRONE_OF_MISCELLANIA_QUEST(359),
 
 	/**
 	 * The Hand in the Sand quest status