Zombie World_Hide Out update [v3.9]

- Reworked Zombie position sync logic

- Adjusted starting area detection accuracy.

- Added a [Save] button for save (Character only), if loaded a save code when joined.

- Adjusted Ferro rod pickup box size.

- Fixed an issue of Giant Zombie.

- [Civil vest] adjusted: +20% Warm

- Adjusted [Ground Floor] player spawn points surround walls to prevent falling.

- Fixed [Cola] opening issue.

- [Food Court Area] added “small storage room” environment area.