refactor: 💡 add loading indicator to connect and cancel actions (#1867)

✅ Closes: ICU-10677

ui/desktop/app/routes/scopes/scope/projects/sessions.js

@@ -8,6 +8,7 @@ import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 import { notifySuccess, notifyError } from 'core/decorators/notify';
 import { resourceFilter } from 'core/decorators/resource-filter';
+import { loading } from 'ember-loading';
 
 export default class ScopesScopeProjectsSessionsRoute extends Route {
   // =services
@@ -88,6 +89,7 @@ export default class ScopesScopeProjectsSessionsRoute extends Route {
    * @param {SessionModel}
    */
   @action
+  @loading
   @notifyError(({ message }) => message, { catch: true })
   @notifySuccess('notifications.canceled-success')
   async cancelSession(session) {

ui/desktop/app/routes/scopes/scope/projects/targets.js

@@ -7,6 +7,7 @@ import Route from '@ember/routing/route';
 import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 import { resourceFilter } from 'core/decorators/resource-filter';
+import { loading } from 'ember-loading';
 
 export default class ScopesScopeProjectsTargetsRoute extends Route {
   // =services
@@ -79,6 +80,7 @@ export default class ScopesScopeProjectsTargetsRoute extends Route {
    * @param {HostModel} host
    */
   @action
+  @loading
   async connect(model, host) {
     // TODO: Connect: move this logic into the target model
     try {