improve UI on web client to include features from penguinmod client

static/index.html

@@ -13,11 +13,11 @@
     <form id="form" action="">
         <p>Run /help for info; more clients are also <a
                 href='https://git.dervland.net/elemental/elemental-on-terminal'>here</a>.</p>
-        <p><b>The web client is a demo and may not always be updated. Other clients will have better support for
-                features and interface elements.</b></p>
         <div class='inner-form'>
             <input id="input" autocomplete="off" />
             <button class='send'><a href='#'>Send</a></button>
+            <button class='next'><a href='#'>Previous</a></button>
+            <button class='prev'><a href='#'>Next</a></button>
         </div>
     </form>
     <script src='/index.js'></script>