Update configuration documentation and remove deprecated templates

- Enhanced the `Config.md` documentation to clarify built-in configuration options and the use of the `config.set` API.
- Removed outdated `Page Template.md` and `Slash Template.md` files to streamline documentation and avoid confusion.
- Updated references in various documentation files to reflect the removal of deprecated templates and ensure consistency across the site.

website/API/codeWidget.md

@@ -0,0 +1,9 @@
+The Code Widget API provides functions for managing code widgets in the editor.
+
+### codeWidget.refreshAll()
+Refreshes all code widgets on the current page that support refreshing.
+
+Example:
+```lua
+codeWidget.refreshAll()  -- Refresh all code widgets on the page
+```