Fixed all outstanding player-submitted code typos up until the end of September 2021.

• The BANK and LOCKER commands are now coloured in line with most other commands.
• Fixed an output message to do with buying contraband.
• Fixed a line break with the Abyssin depth perception message.
• Fixed colour bleeds in aborting a hack, slice or secure.
• Added a line break in the lifthack output.
• Tidied up smalltalk output messages.
• Repairdoor no longer has you "starts"ing to repair a door.