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/providers/accounts-provider.d.ts

@@ -0,0 +1,7 @@
+import { PropsWithChildren } from "react";
+import { AccountManager } from "applesauce-accounts";
+export declare const AccountsContext: import("react").Context<AccountManager<any> | undefined>;
+/** Provides an AccountManager to the component tree */
+export declare function AccountsProvider({ manager, children }: PropsWithChildren<{
+    manager?: AccountManager;
+}>): import("react/jsx-runtime").JSX.Element;