utility.presence: add app id field

src/modules/utility.js

@@ -1234,6 +1234,13 @@ presence.callback = async function (msg, line) {
           });
         }
 
+        if (activity.application_id) {
+          embed.fields.push({
+            name: "Application ID",
+            value: `\`${activity.application_id}\``,
+          });
+        }
+
         embed.description = descLines.join("\n");
 
         if (activity.assets) {