[Code Cleanup] Zone Data Loading Refactor (#2388)

* [Code Cleanup] Zone data loading refactor

* Update client_packet.cpp

* strcpy adjustments

* Ensure safe points get reloaded properly

* Simplify GetPEQZone and getZoneShutDownDelay

* Bring in zone_store where needed

* Update client.cpp

* Signature

* Signature

* Convert helpers to using pointers

* PR comment

* Update worlddb.cpp

* Fix loading for instances

* Fix zoning with fallback as well

* Another place for instance fallback

zone/gm_commands/zheader.cpp

@@ -31,12 +31,14 @@ void command_zheader(Client *c, const Seperator *sep)
 		std::stoul(sep->arg[3]) :
 		0
 	);
-	
+
 	auto outapp = new EQApplicationPacket(OP_NewZone, sizeof(NewZone_Struct));
 	memcpy(outapp->pBuffer, &zone->newzone_data, outapp->size);
 	entity_list.QueueClients(c, outapp);
 	safe_delete(outapp);
 
+	zone_store.LoadZones(content_db);
+
 	c->Message(
 		Chat::White,
 		fmt::format(