Feat/replies (#297)

* update db schema

* feat: add replies

components/list.tsx

@@ -0,0 +1,28 @@
+import { ComponentProps, ReactNode } from 'react';
+
+export function List<
+  T extends {
+    id: string | number;
+  },
+>({
+  items,
+  children,
+  emptyListFallback,
+  ...rest
+}: Omit<ComponentProps<'ul'>, 'children'> & {
+  items: T[];
+  children: (item: T) => ReactNode;
+  emptyListFallback?: ReactNode;
+}) {
+  if (items.length === 0) {
+    return emptyListFallback ?? null;
+  }
+
+  return (
+    <ul {...rest}>
+      {items.map((item) => (
+        <li key={item.id}>{children(item)}</li>
+      ))}
+    </ul>
+  );
+}