Show error message when retry failed (#1) (#1618)

When success, the page reloads. Before it was not a very good experience when the page is redirected to the agent environment. If it is a sidecar, the page will take a while to load.
When failure, the error message is shown.

deploy-board/deploy_board/templates/hosts/host_details.tmpl

@@ -106,7 +106,11 @@
                 data: {'csrfmiddlewaretoken': '{{csrf_token}}'},
                 datatype: 'json',
                 success: function (data) {
-                    window.location = '/env/{{env.envName }}/{{env.stageName}}/';
+                    location.reload();
+                },
+                error: function (data) {
+                    $('#errorBannerId').append(data.responseText);
+                    $('#errorBannerId').show();
                 }
             });
         });
@@ -117,7 +121,11 @@
                 data: {'csrfmiddlewaretoken': '{{csrf_token}}'},
                 datatype: 'json',
                 success: function (data) {
-                    window.location = '/env/{{env.envName }}/{{env.stageName}}/';
+                    location.reload();
+                },
+                error: function (data) {
+                    $('#errorBannerId').append(data.responseText);
+                    $('#errorBannerId').show();
                 }
             });
         });
@@ -128,7 +136,11 @@
                 data: {'csrfmiddlewaretoken': '{{csrf_token}}'},
                 datatype: 'json',
                 success: function (data) {
-                    window.location = '/env/{{env.envName }}/{{env.stageName}}/';
+                    location.reload();
+                },
+                error: function (data) {
+                    $('#errorBannerId').append(data.responseText);
+                    $('#errorBannerId').show();
                 }
             });
         });