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/mdast-util-to-markdown/lib/util/check-emphasis.d.ts

@@ -0,0 +1,11 @@
+/**
+ * @import {Options, State} from 'mdast-util-to-markdown'
+ */
+/**
+ * @param {State} state
+ * @returns {Exclude<Options['emphasis'], null | undefined>}
+ */
+export function checkEmphasis(state: State): Exclude<Options["emphasis"], null | undefined>;
+import type { State } from 'mdast-util-to-markdown';
+import type { Options } from 'mdast-util-to-markdown';
+//# sourceMappingURL=check-emphasis.d.ts.map