fix(xml): add workaround for element order

src/DCCDocument.ts

@@ -32,10 +32,10 @@ export class DCCDocument {
       ignoreComment: true,
       trim: true,
       attributesKey: "_attr",
-      elementNameFn: function (val) {
+      elementNameFn: function(val) {
         return val.replace("dcc:", "").replace("si:", "");
       },
-      textFn: function (val) {
+      textFn: function(val) {
         return val
           .split("\n")
           .map((x) => x.trim())
@@ -47,12 +47,16 @@ export class DCCDocument {
   }
 
   toXML(): string {
-    return js2xml(<Element>this, {
+    /* Properties order in objects is not guaranteed in JavaScript.
+     *  This is a workaround to fix this.
+     *  The keys are set in the right order by creating a new instance of DCCDocument */
+    const fixedOrderDoc = new DCCDocument(this);
+    return js2xml(<Element>fixedOrderDoc, {
       compact: true,
       ignoreComment: true,
       spaces: 2,
       attributesKey: "_attr",
-      elementNameFn: function (val, currentElementObj) {
+      elementNameFn: function(val, currentElementObj) {
         // eslint-disable-next-line @typescript-eslint/no-explicit-any
         const currentElement = <any>currentElementObj;
         return `${currentElement?.namespace ? `${currentElement.namespace}:` : ""}${val}`;