add note about messaging

apps/desktop/src/main/messaging.main.ts

@@ -38,6 +38,7 @@ export class MessagingMain {
   async onMessage(message: any) {
     switch (message.command) {
       case "loadurl":
+        // TODO: Remove this once fakepopup is removed from tray (just used for dev)
         await this.main.windowMain.loadUrl(message.url, message.modal);
         break;
       case "scheduleNextSync":