Fixing a few grammar issues (#23842)

* fixing some typos and spacings

* another one

* not that one

* even more

code/datums/action.dm

@@ -445,7 +445,7 @@
 
 /datum/action/item_action/instrument
 	name = "Use Instrument"
-	desc = "Use the instrument specified"
+	desc = "Use the instrument specified."
 
 /datum/action/item_action/instrument/Trigger(left_click)
 	if(istype(target, /obj/item/instrument))
@@ -551,7 +551,7 @@
 
 /datum/action/item_action/accessory/herald
 	name = "Mirror Walk"
-	desc = "Use near a mirror to enter it"
+	desc = "Use near a mirror to enter it."
 
 //Preset for spells
 /datum/action/spell_action

code/datums/dog_fashion.dm

@@ -177,7 +177,7 @@
 
 /datum/dog_fashion/head/sombrero
 	name = "Segnor REAL_NAME"
-	desc = "You must respect Elder Dogname"
+	desc = "You must respect Elder Dogname."
 
 /datum/dog_fashion/head/sombrero/New(mob/M)
 	..()
@@ -211,7 +211,7 @@
 
 /datum/dog_fashion/head/cone
 	name = "REAL_NAME"
-	desc = "Omnicone's Chosen Champion"
+	desc = "Omnicone's Chosen Champion."
 
 /datum/dog_fashion/back/hardsuit
 	name = "Space Explorer REAL_NAME"

code/datums/emote.dm

@@ -531,7 +531,7 @@
 			return FALSE
 		if(!check_rights(R_ADMIN, FALSE, user))
 			if(!GLOB.dsay_enabled)
-				to_chat(user, "<span class='warning'>Deadchat is globally muted</span>")
+				to_chat(user, "<span class='warning'>Deadchat is globally muted.</span>")
 				return FALSE
 
 /**