Add Rulesets page with HTML structure and CSS styles

- Created a new HTML file for the Rulesets page, including a header, toolbar, rules grid, and rule detail popup.
- Implemented JavaScript functionality for loading, filtering, sorting, and managing rules.
- Added CSS styles for the layout, components, and responsive design of the Rulesets page.

api/src/index.js

@@ -81,7 +81,10 @@ app.use('/params', paramsRoutes)
 const settingsRoutes = require('./routes/settings')
 app.use('/settings', settingsRoutes)
 
-// Avvio del server
+const rulesRoutes = require('./routes/rules')
+app.use('/rules', rulesRoutes)
+
+
 app.listen(PORT, '0.0.0.0', () => {
     console.log(`Started on port ${PORT}`);
 });