* Improved nightshift check on security level change (#79369)
## About The Pull Request
Modifies the security level change proc to only fire the nightshift
subsystem if the subsystem is running, and if a lighting change is
required. If a lighting change is required, nightshift has its next fire
set 7 seconds after, so announcements and sounds don't stack.
## Why It's Good For The Game
Nightshift is only updated when required, eliminating nuisance
announcements when levels unrelated to red/delta are selected.
## Changelog
🆑 LT3
code: Changing security levels will only trigger the nightshift
subsystem if lighting changes are required
/🆑
* Improved nightshift check on security level change
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Co-authored-by: lessthanthree <83487515+lessthnthree@users.noreply.github.com>
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