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/json5/lib/register.js

@@ -0,0 +1,13 @@
+const fs = require('fs')
+const JSON5 = require('./')
+
+// eslint-disable-next-line node/no-deprecated-api
+require.extensions['.json5'] = function (module, filename) {
+    const content = fs.readFileSync(filename, 'utf8')
+    try {
+        module.exports = JSON5.parse(content)
+    } catch (err) {
+        err.message = filename + ': ' + err.message
+        throw err
+    }
+}