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/game/objects/items/devices/lightreplacer.dm

@@ -133,7 +133,7 @@
 			if(src.uses >= max_uses)
 				break
 
-			//consume the item only if it's an light tube,bulb or shard
+			//consume the item only if it's a light tube, bulb or shard
 			loaded = FALSE
 			if(istype(item_to_check, /obj/item/light))
 				var/obj/item/light/found_light = item_to_check

code/game/objects/items/devices/spyglasses.dm

@@ -92,7 +92,7 @@
 	default_raw_text = @{"
 
 Thank you for your purchase of the Nerd Co SpySpeks <small>tm</small>, this paper will be your quick-start guide to violating the privacy of your crewmates in three easy steps!<br><br>Step One: Nerd Co SpySpeks <small>tm</small> upon your face. <br>
-Step Two: Place the included "ProfitProtektor <small>tm</small>" camera assembly in a place of your choosing - make sure to make heavy use of it's inconspicous design!
+Step Two: Place the included "ProfitProtektor <small>tm</small>" camera assembly in a place of your choosing - make sure to make heavy use of its inconspicous design!
 
 Step Three: Press the "Activate Remote View" Button on the side of your SpySpeks <small>tm</small> to open a movable camera display in the corner of your vision, it's just that easy!<br><br><br><center><b>TROUBLESHOOTING</b><br></center>
 My SpySpeks <small>tm</small> Make a shrill beep while attempting to use!