refactor(sidebar): split nav views and add router decorator

Signed-off-by: Noa Virellia <noa@requiem.garden>

client/cms/src/components/sidebar/nav-user.skeletion.tsx

@@ -0,0 +1,18 @@
+import { IconDotsVertical } from '@tabler/icons-react';
+import { SidebarMenuButton } from '../ui/sidebar';
+import { Skeleton } from '../ui/skeleton';
+
+export function NavUserSkeleton() {
+  return (
+    <SidebarMenuButton
+      size="lg"
+    >
+      <Skeleton className="h-8 w-8 rounded-lg" />
+      <div className="flex flex-col flex-1 gap-1">
+        <Skeleton className="h-3 w-16" />
+        <Skeleton className="h-3 w-24" />
+      </div>
+      <IconDotsVertical className="ml-auto size-4" />
+    </SidebarMenuButton>
+  );
+}