Updating Add Device Modal - UI

components/mobile-plugins/mobile-base-plugin/org.wso2.carbon.device.mgt.mobile.ui/src/main/resources/jaggeryapps/devicemgt/app/units/mdm.unit.device.qr-modal/qr-modal.hbs

@@ -29,6 +29,7 @@
                 </span>
                 &nbsp;&nbsp;Add your new mobile device to {{@app.conf.appName}}
             </h4>
+            <button type="button" class="close" data-dismiss="modal" aria-label="Close"><i class="fw fw-cancel"></i></button>
         </div>
         <hr>
         <div class="modal-body add-margin-top-2x add-margin-bottom-2x">