Rewrite web front-end using React

This is a big commit, some font-end function are still working,
including manage, error handle, as others.

web/src/component/Manage.js

@@ -0,0 +1,9 @@
+function Manage() {
+    return (
+        <div>
+            <h2>Manage</h2>
+        </div>
+    )
+}
+
+export default Manage;