Implement timer functions with full CRUD functionality and enhanced UI

- Add comprehensive routes for creating, editing, deleting, and toggling timer functions
- Create new HTML templates for timer function overview, new, and edit pages
- Extend Mithril editor component to support timer-specific settings like trigger type, frequency, and enabled status
- Implement database schema and versioning for timer functions
- Add UI improvements for timer function listing with detailed schedule and status information

static/js/mithril/responseView.js

@@ -315,8 +315,8 @@ const ResponseView = {
                   : ""),
             },
             response.status === "SUCCESS"
-              ? m.trust(response.result.body)
-              : JSON.stringify(response.result)
+              ? m.trust(response?.result?.body)
+              : JSON.stringify(response?.result)
           ),
       ]),