Replaces a number of deciseconds into SECONDS (#82436)

## About The Pull Request
Using these search regexes:

Number ending in 0:
`do_after\((\w+), (\d+)0,`
Replace:
`do_after($1, $2 SECONDS,`

Single digit number:
`do_after\((\w+), [1-9],`
replace:
`do_after($1, 0.$2 SECONDS,`

Double:
`do_after\((\w+), (\d)([1-9]),`
Replace:
`do_after($1, $2.$3 SECONDS,`

## Why It's Good For The Game
Code readability

code/game/objects/structures/plaques/_plaques.dm

@@ -169,7 +169,7 @@
 			return
 		user.visible_message(span_notice("[user] begins engraving [src]."), \
 			span_notice("You begin engraving [src]."))
-		if(!do_after(user, 40, target = src)) //This spits out a visible message that somebody is engraving a plaque, then has a delay.
+		if(!do_after(user, 4 SECONDS, target = src)) //This spits out a visible message that somebody is engraving a plaque, then has a delay.
 			return
 		name = "\improper [namechoice]" //We want improper here so examine doesn't get weird if somebody capitalizes the plaque title.
 		desc = "The plaque reads: '[descriptionchoice]'"