People can now witness a shuttle hijacker complete their hacking stage, rather than somehow be entirely oblivious to someone typing on a keyboard. (#69377)
* Alerts people around the hijacker that they're hijacking.
* Also double-checks to make sure you have your hands free before you can manipulate the console.
* Update emergency.dm
Fixes a reversed check
Co-authored-by: necromanceranne <40847847+necromanceranne@users.noreply.github.com>
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