refactor(web): styles and styleguide

web/src/icons/ArrowDropup.jsx

@@ -0,0 +1,10 @@
+import { h } from 'preact';
+
+export default function ArrowDropup() {
+  return (
+    <svg className="w-10 fill-current" viewBox="0 0 24 24">
+      <path d="M0 0h24v24H0z" fill="none" />
+      <path d="M7 14l5-5 5 5z" />
+    </svg>
+  );
+}