Add total messages to domain view, and improve echoarea stats query

app/Models/Echoarea.php

@@ -70,7 +70,7 @@ class Echoarea extends Model
 
 	/* METHODS */
 
-	public function messages_count(int $period): int
+	public function messages_count(int $period=NULL): int
 	{
 		$eo = Echomail::cacheFor(self::CACHE_TIME)
 			->where('echoarea_id',$this->id);
@@ -87,6 +87,10 @@ class Echoarea extends Model
 			case 30: // month
 				$eo->where('datetime','>=',$dt->subMonth());
 				break;
+
+			case NULL: // all
+				break;
+
 			default:
 				return 0;
 		}