feat: add Favicon Generator app with ImageMagick WASM support

components/layout/AppSidebar.tsx

@@ -17,7 +17,7 @@ import { cn } from '@/lib/utils/cn';
 import Logo from '@/components/Logo';
 import { useSidebar } from './SidebarProvider';
 import { Button } from '@/components/ui/button';
-import { ColorIcon, UnitsIcon, ASCIIIcon, MediaIcon } from '@/components/AppIcons';
+import { ColorIcon, UnitsIcon, ASCIIIcon, MediaIcon, FaviconIcon } from '@/components/AppIcons';
 
 interface NavItem {
   title: string;
@@ -55,6 +55,11 @@ const navigation: NavGroup[] = [
         href: '/media', 
         icon: <MediaIcon className="h-4 w-4" /> 
       },
+      { 
+        title: 'Favicon Generator', 
+        href: '/favicon', 
+        icon: <FaviconIcon className="h-4 w-4" /> 
+      },
     ]
   }
 ];