page switching with custom event

src/ui/Mods.tsx

@@ -0,0 +1,29 @@
+import React from 'react'
+import DownloadHandler from '../utils/download'
+import TopBar from './components/TopBar'
+
+interface IProps {
+  downloadHandler: DownloadHandler
+}
+
+interface IState {
+  isDownloading: boolean
+}
+
+export class Mods extends React.Component<IProps, IState> {
+  constructor(props: IProps) {
+    super(props)
+  }
+
+  async componentDidMount() {
+    return
+  }
+
+  render() {
+    return (
+      <>
+        <TopBar />
+      </>
+    )
+  }
+}