tweak: dev center table visible when overflowing

src/dev-center/index.html

@@ -224,6 +224,7 @@
         </div>
 
         <button class="button button-danger disabled delete-apps-btn" style="float:right;">Delete</button>
+        <div style="overflow-x: auto; clear: both;">
             <table class="table" id="app-list-table">
                 <thead class="disable-user-select">
                     <tr>
@@ -239,6 +240,7 @@
 
                 </tbody>
             </table>
+        </div>
     </section>
     </div>