Fixing https://github.com/wso2/product-iots/issues/1096: Hiding table when no alerts avaialble

components/device-mgt/org.wso2.carbon.device.mgt.ui/src/main/resources/jaggeryapps/devicemgt/app/units/cdmf.unit.geo-dashboard/public/js/geo_exit_fence.js

@@ -34,6 +34,7 @@ function initializeExit() {
             }
         } else{
             $(".fence-not-exist").show();
+            $("#exit-alert").hide();
         }
         $('.viewGeoFenceRow td:not(:last-child)').click(function () {
             viewFence(this.parentElement,'Exit');

components/device-mgt/org.wso2.carbon.device.mgt.ui/src/main/resources/jaggeryapps/devicemgt/app/units/cdmf.unit.geo-dashboard/public/js/geo_stationary.js

@@ -38,6 +38,7 @@ function initStationaryAlert() {
             }
         } else{
             $(".fence-not-exist").show();
+            $("#stationary-alert-table").hide();
         }
         $('.viewGeoFenceRow td:not(:last-child)').click(function () {
             viewFence(this.parentElement,'Stationery');

components/device-mgt/org.wso2.carbon.device.mgt.ui/src/main/resources/jaggeryapps/devicemgt/app/units/cdmf.unit.geo-dashboard/public/js/geo_within.js

@@ -34,6 +34,7 @@ function initializeWithin() {
             }
         } else{
             $(".fence-not-exist").show();
+            $("#within-alert").hide();
         }
         $('.viewGeoFenceRow td:not(:last-child)').click(function () {
             viewFence(this.parentElement,'WithIn');