feat: implement basic web app

frontend/src/core/utils/markdown.ts

@@ -0,0 +1,10 @@
+export function extractTitleFromMarkdown(markdown: string) {
+  if (markdown.startsWith("# ")) {
+    let title = markdown.split("\n")[0]!.trim();
+    if (title.startsWith("# ")) {
+      title = title.slice(2).trim();
+    }
+    return title;
+  }
+  return undefined;
+}