Fix: Remove duplicate closing brace causing JavaScript syntax error

- Fixed syntax error that prevented script.js from loading
- This was breaking the theme toggle button and all JavaScript functionality
- Removed extra }); on line 219

py_app/app/static/script.js

@@ -217,7 +217,6 @@ document.addEventListener('DOMContentLoaded', () => {
                     if (reportTitle) reportTitle.textContent = 'Error loading data.';
                 });
         });
-        });
     }
 
     // Bind the export functionality to the CSV button