feat: create v2 for module support

assets/src/App.js

@@ -1,5 +1,5 @@
 import React, { Component } from 'react';
-import { BrowserRouter, Route, Switch } from 'react-router-dom';
+import { BrowserRouter, Route, Routes } from 'react-router-dom';
 
 import './paste/Framework.css';
 
@@ -20,7 +20,7 @@ class App extends Component {
   }
 
 componentDidMount() {
-  req('https://paste.dn42.us/app-info').get()
+  req('/app-info').get()
   .then((response) => {
     if (response.ok) return response.text().catch(()=>"");
     else return "Unknown API"; })
@@ -30,20 +30,16 @@ componentDidMount() {
   render() {
     const {api, name} = this.state;
     return (
-      <BrowserRouter basename={'/ui'}>
-        <React.Fragment key={1}>
+        <>
           <section className="container-responsive">
-            <Switch>
-              <Route path={`/`} component={Paste} />
-            </Switch>
+            <Paste />
           </section>
 
           <footer>
             <span className="left text-muted">{name}</span>
             <span className="right text-muted">{api}</span>
           </footer>
-        </React.Fragment>
-      </BrowserRouter>
+        </>
     );
   }
 }