feat: initialize markr nostr bookmark client

- Add project structure with TypeScript, React, and Vite
- Implement nostr authentication using browser extension (NIP-07)
- Add NIP-51 compliant bookmark fetching and display
- Create minimal UI with login and bookmark components
- Integrate applesauce-core and applesauce-react libraries
- Add responsive styling with dark/light mode support
- Include comprehensive README with setup instructions

This is a minimal MVP for a nostr bookmark client that allows users to
view their bookmarks according to NIP-51 specification.

node_modules/applesauce-react/dist/hooks/use-render-nast.js

@@ -0,0 +1,6 @@
+import { useMemo } from "react";
+import { renderNast } from "../helpers/nast.js";
+/** A hook to get the rendered output of a nostr syntax tree */
+export function useRenderNast(root, components) {
+    return useMemo(() => (root ? renderNast(root, components) : null), [root, Object.keys(components).join("|")]);
+}