Add missing backup site translations

dashboard/src/views/BackupSitesView.vue

@@ -155,8 +155,7 @@ const actionMenuElement = useTemplateRef('actionMenuElement');
 function onActionMenu(site, event) {
   actionMenuModel.value = [{
     icon: 'fa-solid fa-box-open',
-    // TODO translate
-    label: 'Content',
+    label: t('backups.contentAction'),
     action: onEditContent.bind(null, site),
   }, {
     icon: 'fa-solid fa-clock',
@@ -164,7 +163,7 @@ function onActionMenu(site, event) {
     action: onEditSchedule.bind(null, site),
   }, {
     icon: 'fa-solid fa-pencil-alt',
-    label: 'Config',
+    label: t('backups.configAction'),
     action: onEditConfig.bind(null, site),
   }, {
     separator: true