redesign sidebar

package.json

@@ -20,6 +20,7 @@
     "@headlessui/react": "^1.7.16",
     "@nostr-dev-kit/ndk": "^0.7.7",
     "@nostr-fetch/adapter-ndk": "^0.11.0",
+    "@radix-ui/react-collapsible": "^1.0.3",
     "@radix-ui/react-dialog": "^1.0.4",
     "@radix-ui/react-popover": "^1.0.6",
     "@radix-ui/react-tooltip": "^1.0.6",