missing buttons from updater

src/locales/en/messages.json

@@ -788,8 +788,8 @@
   "updateAvailableDesc": {
     "message": "An update was found. Do you want to download it now?"
   },
-  "update": {
-    "message": "Update"
+  "restart": {
+    "message": "Restart"
   },
   "later": {
     "message": "Later"

src/main/updater.main.ts

@@ -56,6 +56,9 @@ export class UpdaterMain {
             if (this.doingUpdateCheckWithFeedback && this.main.windowMain.win != null) {
                 dialog.showMessageBox(this.main.windowMain.win, {
                     message: this.main.i18nService.t('noUpdatesAvailable'),
+                    buttons: [this.main.i18nService.t('ok')],
+                    defaultId: 0,
+                    noLink: true,
                 });
             }