MT#64037 PBXGroup Custom Announcements Bugfix

The custom announcements were not showing in
the CF menu under the PBXGroup section
because the action to load the announcements
was missing from the mounting hook.

Change-Id: I5813f2ce4471aa5a51ebc08ed3cdc08bde16b931

src/pages/CscPagePbxGroupDetails.vue

@@ -473,6 +473,7 @@ export default {
         }
         this.selectGroup(this.id)
         await this.loadMappingsFull(this.id)
+        await this.loadAnnouncements()
     },
     beforeUnmount () {
         this.resetSelectedGroup()
@@ -505,7 +506,8 @@ export default {
         ]),
         ...mapActions('callForwarding', [
             'loadMappingsFull',
-            'createMapping'
+            'createMapping',
+            'loadAnnouncements'
         ]),
         ...mapMutations('pbxGroups', [
             'selectGroup',