Replace all modular HTML spans with defines spans

In total:
- Adds span defines for `reallybig hypnophrase`, `big warning`, `header`
- Fixes a missing apostrophe for hypno stare
- Makes a special exception for cuddling.dm, which uses an irregular span
- Puts the spans file back

modular_splurt/code/modules/reagents/chemistry/reagents/alcohol_reagents.dm

@@ -49,7 +49,7 @@
 			if(!M.undergoing_cardiac_arrest() && M.can_heartattack() && prob(1))
 				M.set_heartattack(TRUE)
 				if(M.stat == CONSCIOUS)
-					M.visible_message("<span class='userdanger'>[M] clutches at [M.p_their()] chest as if [M.p_their()] heart stopped!</span>") // too much lean :(
+					M.visible_message(span_userdanger("[M] clutches at [M.p_their()] chest as if [M.p_their()] heart stopped!")) // too much lean :(
 	..()
 
 /datum/reagent/consumable/ethanol/cum_in_a_hot_tub
@@ -355,4 +355,4 @@
 	T.Remove()
 	nT.Insert(M)
 	T.moveToNullspace()//To valhalla
-	to_chat(M, "<span class='big warning'>Your tongue feels... weally fwuffy!!</span>")
+	to_chat(M, span_big_warning("Your tongue feels... weally fwuffy!!"))

modular_splurt/code/modules/reagents/chemistry/reagents/drug_reagents.dm

@@ -2,7 +2,7 @@
 /datum/reagent/drug/aphrodisiacplus/overdose_process(mob/living/M)
 	if(M && M.client?.prefs.arousable && !(M.client?.prefs.cit_toggles & NO_APHRO))
 		if(!HAS_TRAIT(M, TRAIT_IN_HEAT))
-			to_chat(M, "<span class='userlove'>Your need for sex is overpowering!</span>")
+			to_chat(M, span_userlove("Your need for sex is overpowering!"))
 			M.log_message("Made In Heat by hexacrocin.", LOG_EMOTE)
 			ADD_TRAIT(M, TRAIT_IN_HEAT, APHRO_TRAIT)
 	. = ..()
@@ -47,20 +47,20 @@
 		return
 	var/mob/living/carbon/human/H = M
 	if (prob(10))
-		to_chat(H, "<span class='notice'>You feel like you can cope!</span>")
+		to_chat(H, span_notice("You feel like you can cope!"))
 		H.adjust_disgust(-10)
 		SEND_SIGNAL(H, COMSIG_ADD_MOOD_EVENT, "copium", /datum/mood_event/cope, name)
 	. = 1
 
 /datum/reagent/drug/copium/overdose_start(mob/living/M)
-	to_chat(M, "<span class='userdanger'>What the fuck.</span>")
+	to_chat(M, span_userdanger("What the fuck."))
 	SEND_SIGNAL(M, COMSIG_ADD_MOOD_EVENT, "[type]_overdose", /datum/mood_event/overdose, name)
 
 /datum/reagent/drug/copium/overdose_process(mob/living/M)
 	var/mob/living/carbon/human/H = M
 	if (prob(5))
 		H.adjust_disgust(20)
-		to_chat(H, "<span class='warning'>I can't stand it anymore!</span>")
+		to_chat(H, span_warning("I can't stand it anymore!"))
 	..()
 
 /datum/reagent/drug/copium/reaction_obj(obj/O, volume)

modular_splurt/code/modules/reagents/chemistry/reagents/enlargement.dm

@@ -68,7 +68,7 @@
 				B.color = SKINTONE2HEX(H.skin_tone)
 			B.size = 1
 			B.size_cached = B.size
-			to_chat(M, "<span class='warning'>You feel your midsection get warmer... bubbling softly as it seems to start distending</b></span>")
+			to_chat(M, span_warning("You feel your midsection get warmer... bubbling softly as it seems to start distending</b>"))
 			M.reagents.remove_reagent(type, 5)
 	//If they have, increase size.
 	if(B.size_cached < BELLY_SIZE_MAX) //just in case

modular_splurt/code/modules/reagents/chemistry/reagents/other_reagents.dm

@@ -57,7 +57,7 @@
 			return
 		
 		// Character has a seisure
-		M.visible_message("<span class='danger'>[M] starts having a seizure!</span>", "<span class='userdanger'>You have a seizure!</span>")
+		M.visible_message(span_danger("[M] starts having a seizure!"), span_userdanger("You have a seizure!"))
 		M.Unconscious(120)
 		to_chat(M, "<span class='cultlarge'>[pick("The moon is close. It will be a long hunt tonight.", "Ludwig, why have you forsaken me?", \
 		"The night is near its end...", "Fear the blood...")]</span>")

modular_splurt/code/modules/reagents/reagent_containers/spray.dm

@@ -18,7 +18,7 @@
 	// Check for plush toy
 	if(!istype(target, /obj/item/toy/plush))
 		// Alert user and return
-		to_chat(user, "<span class='warning'>You don't want to waste the solution on a non-plushie.</span>")
+		to_chat(user, span_warning("You don't want to waste the solution on a non-plushie."))
 		return
 
 	// Return normally