Reapply "Sticky Web pulled by Web Weaver"

This reverts commit 78eb1af17b.

code/game/objects/effects/spiders.dm

@@ -41,6 +41,9 @@
 	else if(isliving(mover))
 		if(istype(mover.pulledby, /mob/living/simple_animal/hostile/poison/giant_spider))
 			return TRUE
+		if(mover.pulledby)
+			if(HAS_TRAIT(mover.pulledby, TRAIT_WEB_WEAVER))
+				return TRUE
 		if(prob(50))
 			to_chat(mover, "<span class='danger'>You get stuck in \the [src] for a moment.</span>")
 			return FALSE