feat: add new UI components including RadioGroup, Resizable, Sidebar, Spinner, Table, Toast, and ToggleGroup

- Implemented RadioGroup and RadioGroupItem for radio button functionality.
- Created ResizablePanelGroup, ResizablePanel, and ResizableHandle for resizable panels.
- Developed Sidebar component with context for state management and various subcomponents (SidebarTrigger, SidebarMenu, etc.).
- Added Spinner component for loading indicators.
- Introduced Table component with TableHeader, TableBody, TableFooter, and related subcomponents for structured data display.
- Built Toast component for notifications with customizable actions and icons.
- Implemented ToggleGroup and ToggleGroupItem for toggle button functionality with context support.

services/frontend/src/components/ui/skeleton.tsx

@@ -1,4 +1,4 @@
-import { cn } from "@/lib/utils";
+import { cn } from "@/lib/utils"
 
 function Skeleton({ className, ...props }: React.ComponentProps<"div">) {
   return (
@@ -7,7 +7,7 @@ function Skeleton({ className, ...props }: React.ComponentProps<"div">) {
       className={cn("animate-pulse rounded-md bg-muted", className)}
       {...props}
     />
-  );
+  )
 }
 
-export { Skeleton };
+export { Skeleton }