make App() class

src/ui/components/menu/Menu.tsx

@@ -0,0 +1,22 @@
+import React from 'react'
+
+interface IProps {
+  children: React.ReactNode[] | React.ReactNode;
+  className?: string;
+  heading: string;
+}
+
+export default class Menu extends React.Component<IProps, never> {
+  constructor(props: IProps) {
+    super(props)
+  }
+
+  render() {
+    return (
+      <div className={'Menu ' + this.props.className}>
+        <div className="MenuHeading">{this.props.heading}</div>
+        {this.props.children}
+      </div>
+    )
+  }
+}