Update internal system with dynamic message

modules/ecryme-main.js

@@ -72,11 +72,24 @@ Hooks.once("init", async function () {
 /* -------------------------------------------- */
 function welcomeMessage() {
   if (game.user.isGM) {
-    ChatMessage.create({
-      user: game.user.id,
-      whisper: [game.user.id],
-      content: `<div id="welcome-message-ecryme"><span class="rdd-roll-part">
-      <strong>Bienvenu dans Ecryme !</strong>` });
+    // Try to fetch the welcome message from the github repo "welcome-message-ecryme.html"
+    fetch("https://raw.githubusercontent.com/uberwald/fvtt-ecryme/main/welcome-message-ecryme.html")
+      .then(response => response.text())
+      .then(html => {
+        ChatMessage.create({
+          user: game.user.id,
+          whisper: [game.user.id],
+          content: html
+        });
+      })
+      .catch(error => {
+        console.error("Error fetching welcome message:", error);
+        ChatMessage.create({
+          user: game.user.id,
+          whisper: [game.user.id],
+          content: "<b>Bienvenue dans Ecryme RPG !</b><br>Visitez le site officiel pour plus d'informations."
+        });
+      });
   }
 }