* Removes final remnants of 'targetted' (#79626)
## About The Pull Request
Finishing what https://github.com/tgstation/tgstation/pull/79513/
started, removes 'targetted' typo from code. Also updates the basic mob
guide with the new updated var names.
## Why It's Good For The Game
Typos bad. Accurate guides good.
## Changelog
🆑
code: gets rid of the rest of the instances of 'targetted' typo from
code
/🆑
* Removes final remnants of 'targetted'
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Co-authored-by: Bloop <13398309+vinylspiders@users.noreply.github.com>
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