Missing TGUI interfaces

[ProfessorPopoff]

Issue Summary

A list of identified missing TGUI interfaces

The interfaces outright missing in question:

• TrackedPlaytime
• LanguageMenu
• Keybindings(Actually doesn't even show up at all, give you a NtOS error)
  
• CrewManifest
• Stack (the interface for manipulating item stacks)
• AIAirlock (noticed when clicking doors as ghost)

TGUI aspects that are broken/nonfunctional but present

• Strip menu (Gives too many actions error / notifies admins)
• Paper interfaces (Incredibly broken overall. Fields non-functional, signing as well)
• TBD: tgui_alert seems to not work. Looking for more examples but it is impossible to save terminal entries currently, flickering on for only a moment before closing itself.

More TBA. If you witness one not on this list- add it in comments