PCF compatibility patch for March 2025 update

Support for mouse buttons in controls.

Removed "collision via traces" constraint from missile combo muzzle effects.

Fixed depth range issue.

Halloween + 1 Year Anniversary Update

Refactoring:
* Better multiplayer support
* Fixed third person support
* Fixed compatibility with most major view mods
* Fixed weird rendering in front of mirrors for various effects
* Fixed potential convar errors in multiplayer
* Optimizations for some effects
* Revamped hook system
* Tweaks

Compatibility patch for addons messing with blank var _.

Removed fov slider since the command is now blocked.

Fixed potential error when deleting save state while in morphball.

Fixed morphball unmorph look angles.

Minor tweak to charge effects.