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/dequal/lite/index.js

@@ -0,0 +1,31 @@
+var has = Object.prototype.hasOwnProperty;
+
+function dequal(foo, bar) {
+	var ctor, len;
+	if (foo === bar) return true;
+
+	if (foo && bar && (ctor=foo.constructor) === bar.constructor) {
+		if (ctor === Date) return foo.getTime() === bar.getTime();
+		if (ctor === RegExp) return foo.toString() === bar.toString();
+
+		if (ctor === Array) {
+			if ((len=foo.length) === bar.length) {
+				while (len-- && dequal(foo[len], bar[len]));
+			}
+			return len === -1;
+		}
+
+		if (!ctor || typeof foo === 'object') {
+			len = 0;
+			for (ctor in foo) {
+				if (has.call(foo, ctor) && ++len && !has.call(bar, ctor)) return false;
+				if (!(ctor in bar) || !dequal(foo[ctor], bar[ctor])) return false;
+			}
+			return Object.keys(bar).length === len;
+		}
+	}
+
+	return foo !== foo && bar !== bar;
+}
+
+exports.dequal = dequal;