feat: improve note editing and creation workflow

- Enhanced the editor to handle new note creation directly, initializing with an empty state.
- Updated save functionality to create a note first if it's new, followed by saving the content.
- Modified breadcrumb navigation to accommodate new notes and improve user experience.
- Removed the old note creation page to streamline the editing process.
- Added error handling and dynamic title updates for better feedback during note creation.

surfsense_web/components/sidebar/app-sidebar.tsx

@@ -138,13 +138,13 @@ export const iconMap: Record<string, LucideIcon> = {
 	MessageCircleMore,
 	Settings2,
 	SquareLibrary,
+	FileText,
 	SquareTerminal,
 	AlertCircle,
 	Info,
 	ExternalLink,
 	Trash2,
 	Podcast,
-	FileText,
 	Users,
 };