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/micromark-factory-title/index.js

@@ -0,0 +1,158 @@
+/**
+ * @import {
+ *   Code,
+ *   Effects,
+ *   State,
+ *   TokenType
+ * } from 'micromark-util-types'
+ */
+
+import { factorySpace } from 'micromark-factory-space';
+import { markdownLineEnding } from 'micromark-util-character';
+/**
+ * Parse titles.
+ *
+ * ###### Examples
+ *
+ * ```markdown
+ * "a"
+ * 'b'
+ * (c)
+ * "a
+ * b"
+ * 'a
+ *     b'
+ * (a\)b)
+ * ```
+ *
+ * @param {Effects} effects
+ *   Context.
+ * @param {State} ok
+ *   State switched to when successful.
+ * @param {State} nok
+ *   State switched to when unsuccessful.
+ * @param {TokenType} type
+ *   Type of the whole title (`"a"`, `'b'`, `(c)`).
+ * @param {TokenType} markerType
+ *   Type for the markers (`"`, `'`, `(`, and `)`).
+ * @param {TokenType} stringType
+ *   Type for the value (`a`).
+ * @returns {State}
+ *   Start state.
+ */
+export function factoryTitle(effects, ok, nok, type, markerType, stringType) {
+  /** @type {NonNullable<Code>} */
+  let marker;
+  return start;
+
+  /**
+   * Start of title.
+   *
+   * ```markdown
+   * > | "a"
+   *     ^
+   * ```
+   *
+   * @type {State}
+   */
+  function start(code) {
+    if (code === 34 || code === 39 || code === 40) {
+      effects.enter(type);
+      effects.enter(markerType);
+      effects.consume(code);
+      effects.exit(markerType);
+      marker = code === 40 ? 41 : code;
+      return begin;
+    }
+    return nok(code);
+  }
+
+  /**
+   * After opening marker.
+   *
+   * This is also used at the closing marker.
+   *
+   * ```markdown
+   * > | "a"
+   *      ^
+   * ```
+   *
+   * @type {State}
+   */
+  function begin(code) {
+    if (code === marker) {
+      effects.enter(markerType);
+      effects.consume(code);
+      effects.exit(markerType);
+      effects.exit(type);
+      return ok;
+    }
+    effects.enter(stringType);
+    return atBreak(code);
+  }
+
+  /**
+   * At something, before something else.
+   *
+   * ```markdown
+   * > | "a"
+   *      ^
+   * ```
+   *
+   * @type {State}
+   */
+  function atBreak(code) {
+    if (code === marker) {
+      effects.exit(stringType);
+      return begin(marker);
+    }
+    if (code === null) {
+      return nok(code);
+    }
+
+    // Note: blank lines can’t exist in content.
+    if (markdownLineEnding(code)) {
+      // To do: use `space_or_tab_eol_with_options`, connect.
+      effects.enter("lineEnding");
+      effects.consume(code);
+      effects.exit("lineEnding");
+      return factorySpace(effects, atBreak, "linePrefix");
+    }
+    effects.enter("chunkString", {
+      contentType: "string"
+    });
+    return inside(code);
+  }
+
+  /**
+   *
+   *
+   * @type {State}
+   */
+  function inside(code) {
+    if (code === marker || code === null || markdownLineEnding(code)) {
+      effects.exit("chunkString");
+      return atBreak(code);
+    }
+    effects.consume(code);
+    return code === 92 ? escape : inside;
+  }
+
+  /**
+   * After `\`, at a special character.
+   *
+   * ```markdown
+   * > | "a\*b"
+   *      ^
+   * ```
+   *
+   * @type {State}
+   */
+  function escape(code) {
+    if (code === marker || code === 92) {
+      effects.consume(code);
+      return inside;
+    }
+    return inside(code);
+  }
+}