Ta bort kolon vid tomma taggar.

Fixar #12

public/app.js

@@ -52,7 +52,7 @@ document.addEventListener('DOMContentLoaded', function() {
 
         // Structure data for Org mode
         const taskData = {
-            subject: `${subject} :${tags}:`,
+            subject: tags ? `${subject} :${tags}:` : subject,
             description,
             scheduled
         };