refactor: organize desktop vs. mobile into separate folders

js/desktop/src/features/particles/folder-view.tsx

@@ -0,0 +1,23 @@
+import { Particle } from "@/api/types";
+import { useLiveParticleChildren } from "@/hooks/use-particle";
+import { parseParticlePath, type ParticlePath } from "@/lib/particle-path";
+import { ComposeOverlay } from "@/features/compose/compose-overlay";
+
+interface FolderViewProps {
+  folderParticle: Particle;
+  path: ParticlePath;
+}
+
+export function FolderView({ path, folderParticle }: FolderViewProps) {
+  const { children, error, isLoading } = useLiveParticleChildren(path);
+  const { networkId } = parseParticlePath(path);
+
+  return (
+    <div className="flex h-full items-center justify-center">
+      <p className="text-muted-foreground text-sm">
+        Folder view — {folderParticle.id}
+      </p>
+      <ComposeOverlay networkId={networkId} />
+    </div>
+  );
+}