fixed typo in eye tracking code

Version 127:
-added experimental support for vive pro eye tracking and the vive facial tracker,
including an interface for editing binding of facial tracker data to player flexes
-fixed 3 lua errors
-its now possible to exit fbt mode by restarting vrmod

compatibility for module v21

Version 126:
-removed waiting for tracking screen
-fixed other vr players body rotation getting messed up in multiplayer sometimes

Version 125:
-added option to enable hud, and convars for adjusting it (vrmod_hud*)

Version 124:
-derma popup menus now automatically show up in vr, dropdowns are now also usable
-vrmod_start waits until game is unpaused
-added back vrmod_showonstartup that got accidentally removed in a previous update

Version 123:
-made the vrmod menu more modular
-added changelog to vrmod menu
-added flashlight attachment point option (vrmod_flashlight_attachment convar)
-fixed vr flashlight not being removed when exiting vr
-vr flashlight can no longer be used if flashlight usage is blocked on desktop
-added left hand fire binds for lefthanded weapon support
-better lua loading order management
-fixed a lua error when opening vr chat on servers with some custom chat addons

Version 122:
-added seated mode
-added crouch bind
-added support for wip linux module

Version 121:
-fixed bug where player would move around uncontrollably on its own in multiplayer when the users ping is high and fps is low

Version 120:
-added option to open doors by grabbing the handle
-added limits to netmessages