Core/Players: Fix converting quests on faction change

Fix quests not being converted on faction change due to table world.player_factionchange_quests not loaded on startup

src/server/game/World/World.cpp

@@ -1711,6 +1711,9 @@ void World::SetInitialWorldSettings()
     TC_LOG_INFO("server.loading", "Loading faction change spell pairs...");
     sObjectMgr->LoadFactionChangeSpells();
 
+    TC_LOG_INFO("server.loading", "Loading faction change quest pairs...");
+    sObjectMgr->LoadFactionChangeQuests();
+
     TC_LOG_INFO("server.loading", "Loading faction change item pairs...");
     sObjectMgr->LoadFactionChangeItems();