Updating logo image url in authorise

web/templates/authorize.html

@@ -6,7 +6,7 @@
         <div class="oauth-prompt">
             <div class="prompt__heading">
                 <div class="prompt__app-icon">
-                    <img src="/static/images/icon50x50.gif" width="50" height="50" alt="">
+                    <img src="/static/images/icon50x50.png" width="50" height="50" alt="">
                 </div>
                 <div class="text">An application would like to connect to your {{.Props.TeamName}} account.</div>
             </div>