Stolen Bugfixes

Assuming this should all even be one PR. (Waiting for probable "Closed" because of it.)

Steals some bugfixes/tweaks from /tg/. Note: I am a newb at BYOND coding so yeah.
All the credit goes to whoever created the original PRs linked below (Still not sure why I left links to the original /tg/ PRs.)

Aranclanos's service borg violin fix: https://github.com/tgstation/-tg-station/pull/4030

Changed supply status display from SUPPLY to CARGO so the icon doesn't clip as much. Credit to Ikarrus. https://github.com/tgstation/-tg-station/pull/3933/files

Lockboxes can now be unlocked by a PDA with ID inside. Credit to LandoTheClimber. https://github.com/tgstation/-tg-station/pull/3978 (If you can think of other things that should be unlockable with a PDA, let me know)

Fixes the gravity generator not updating your gravity status. Credit to Giacom :heart:
https://github.com/tgstation/-tg-station/pull/3920

Fixes dead people floating in space randomly. Credit to Kelenius.
https://github.com/tgstation/-tg-station/pull/3980

Fixes spamming ready button toggling it. :heart: Credit to A-t48
https://github.com/tgstation/-tg-station/pull/4200