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/helpers/nast.js

@@ -0,0 +1,15 @@
+import { jsx as _jsx, Fragment as _Fragment } from "react/jsx-runtime";
+/** Render a nostr syntax tree to JSX components */
+export function renderNast(root, components) {
+    const indexes = {};
+    return (_jsx(_Fragment, { children: root.children.map((node) => {
+            indexes[node.type] = indexes[node.type] ?? 0;
+            const index = indexes[node.type];
+            indexes[node.type]++;
+            const Component = components[node.type];
+            if (!Component)
+                return null;
+            // @ts-expect-error
+            return _jsx(Component, { node: node }, node.type + "-" + index);
+        }) }));
+}