Improve extended examination text for many objects (#31381)

Plurality, capitalization, punctuation, and item icons have been
improved. Status displays now show the same text on examination that
they do visually. Inducers only show a success message when they
actually succeed.

code/game/objects/items/extinguisher.dm

@@ -68,7 +68,7 @@
 /obj/item/extinguisher/examine(mob/user)
 	..()
 	if(reagents.total_volume)
-		to_chat(user, "It contains [round(reagents.total_volume)] units.")
+		to_chat(user, "It contains [round(reagents.total_volume)] unit\s.")
 		to_chat(user, "<span class='notice'>Alt-click to empty it.</span>")
 	else
 		to_chat(user, "It is empty.")