adds domain expansion

- adds domain expansion, final spell for void heretics
- makes clap1 into an emote
- makes cleave a little more enticing with two guaranteed critical wounds and brute damage
- buffs void mark

modular_citadel/code/modules/mob/cit_emotes.dm

@@ -321,3 +321,16 @@
 	else
 		sound = pick('modular_citadel/sound/voice/human_female_pain_1.ogg', 'modular_citadel/sound/voice/human_female_pain_2.ogg', 'modular_citadel/sound/voice/human_female_pain_3.ogg', 'modular_citadel/sound/voice/human_female_scream_2.ogg', 'modular_citadel/sound/voice/human_female_scream_3.ogg', 'modular_citadel/sound/voice/human_female_scream_4.ogg')
 	playsound(user, sound, 50, 0, 0)
+
+/datum/emote/living/clap1
+	key = "clap1"
+	key_third_person = "claps"
+	message = "claps their hands together."
+	emote_type = EMOTE_AUDIBLE
+	muzzle_ignore = TRUE
+	restraint_check = TRUE
+
+/datum/emote/living/clap1/run_emote(mob/living/user, params)
+	if(!(. = ..()))
+		return
+	playsound(user, 'modular_citadel/sound/voice/clap.ogg', 50, 1, -1)