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-phrasing/lib/index.js

@@ -0,0 +1,45 @@
+/**
+ * @typedef {import('mdast').Html} Html
+ * @typedef {import('mdast').PhrasingContent} PhrasingContent
+ */
+
+import {convert} from 'unist-util-is'
+
+/**
+ * Check if the given value is *phrasing content*.
+ *
+ * > 👉 **Note**: Excludes `html`, which can be both phrasing or flow.
+ *
+ * @param node
+ *   Thing to check, typically `Node`.
+ * @returns
+ *   Whether `value` is phrasing content.
+ */
+
+export const phrasing =
+  /** @type {(node?: unknown) => node is Exclude<PhrasingContent, Html>} */
+  (
+    convert([
+      'break',
+      'delete',
+      'emphasis',
+      // To do: next major: removed since footnotes were added to GFM.
+      'footnote',
+      'footnoteReference',
+      'image',
+      'imageReference',
+      'inlineCode',
+      // Enabled by `mdast-util-math`:
+      'inlineMath',
+      'link',
+      'linkReference',
+      // Enabled by `mdast-util-mdx`:
+      'mdxJsxTextElement',
+      // Enabled by `mdast-util-mdx`:
+      'mdxTextExpression',
+      'strong',
+      'text',
+      // Enabled by `mdast-util-directive`:
+      'textDirective'
+    ])
+  )