Corrects 200+ instances of "it's" where it should've been "its" instead (#85169)

## About The Pull Request

it's - conjunction of "it" and "is"
its - possessive form of "it"

grammar is hard, and there were a lot of places where "it's" was used
where it shouldn't have been. i went and painstakingly searched the
entire repository for these instances, spending a few hours on it. i
completely ignored the changelog archive, and i may have missed some
outliers. most player-facing ones should be corrected, though
## Why It's Good For The Game
proper grammar is good

## Changelog
🆑
spellcheck: Numerous instances of "it's" have been properly replaced
with "its"
/🆑

code/datums/shuttles/emergency.dm

@@ -434,7 +434,7 @@
 /datum/map_template/shuttle/emergency/lance
 	suffix = "lance"
 	name = "The Lance Crew Evacuation System"
-	description = "A brand new shuttle by Nanotrasen's finest in shuttle-engineering, it's designed to tactically slam into a destroyed station, dispatching threats and saving crew at the same time! Be careful to stay out of it's path."
+	description = "A brand new shuttle by Nanotrasen's finest in shuttle-engineering, it's designed to tactically slam into a destroyed station, dispatching threats and saving crew at the same time! Be careful to stay out of its path."
 	admin_notes = "WARNING: This shuttle is designed to crash into the station. It has turrets, similar to the raven."
 	credit_cost = CARGO_CRATE_VALUE * 70
 	occupancy_limit = "50"