Implement QUEST_CONTENT_FINISH_PLOT

src/main/java/emu/grasscutter/game/quest/content/ContentFinishPlot.java

+package emu.grasscutter.game.quest.content;
+
+import emu.grasscutter.data.def.QuestData.QuestCondition;
+import emu.grasscutter.game.quest.QuestValue;
+import emu.grasscutter.game.quest.GameQuest;
+import emu.grasscutter.game.quest.enums.QuestTrigger;
+import emu.grasscutter.game.quest.handlers.QuestBaseHandler;
+
+@QuestValue(QuestTrigger.QUEST_CONTENT_FINISH_PLOT)
+public class ContentFinishPlot extends QuestBaseHandler {
+
+	@Override
+	public boolean execute(GameQuest quest, QuestCondition condition, int... params) {
+		return condition.getParam()[0] == params[0];
+	}
+	
+}

src/main/java/emu/grasscutter/server/packet/recv/HandlerNpcTalkReq.java

@@ -16,7 +16,9 @@ public class HandlerNpcTalkReq extends PacketHandler {
 	public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
 		NpcTalkReq req = NpcTalkReq.parseFrom(payload);
 		
+		// Why are there 2 quest triggers that do the same thing...
 		session.getPlayer().getQuestManager().triggerEvent(QuestTrigger.QUEST_CONTENT_COMPLETE_TALK, req.getTalkId());
+		session.getPlayer().getQuestManager().triggerEvent(QuestTrigger.QUEST_CONTENT_FINISH_PLOT, req.getTalkId());
 
 		session.send(new PacketNpcTalkRsp(req.getNpcEntityId(), req.getTalkId(), req.getEntityId()));
 	}