Utilisation de constant pour le systeme

module/item-sheet.js

@@ -7,6 +7,7 @@ import { RdDGemme } from "./rdd-gemme.js";
 import { Misc } from "./misc.js";
 import { HtmlUtility } from "./html-utility.js";
 import { ReglesOptionelles } from "./regles-optionelles.js";
+import { SYSTEM_RDD } from "./constants.js";
 
 /**
  * Extend the basic ItemSheet with some very simple modifications
@@ -17,7 +18,7 @@ export class RdDItemSheet extends ItemSheet {
   /** @override */
   static get defaultOptions() {
     return mergeObject(super.defaultOptions, {
-      classes: ["foundryvtt-reve-de-dragon", "sheet", "item"],
+      classes: [SYSTEM_RDD, "sheet", "item"],
       template: "systems/foundryvtt-reve-de-dragon/templates/item-sheet.html",
       width: 550,
       height: 550