Style fix

web/templates/chat.html

@@ -604,7 +604,7 @@
             <div class="card">
                 <div class="card-content p-2">
 
-                    <div class="columns">
+                    <div class="columns is-mobile">
                         <div class="column pr-1">
                             <form @submit.prevent="sendMessage()">
                                 <input type="text" class="input"
@@ -717,4 +717,4 @@ const UserJWTClaims = {{.JWTClaims.ToJSON}};
 
 </body>
 </html>
-{{end}}
+{{end}}