Fix TypeScript typecheck errors

resources/js/admin/i18n/locales/en/auth.json

@@ -1,6 +1,7 @@
 {
   "login": {
     "title": "Event Admin",
+    "pageTitle": "Login",
     "badge": "Fotospiel Event Admin",
     "hero_tagline": "Stay in control, stay relaxed",
     "hero_title": "Your cockpit for every Fotospiel event",
@@ -90,6 +91,9 @@
     "appearance_label": "Appearance"
   },
   "redirecting": "Redirecting to login …",
+  "logout": {
+    "title": "Signing out …"
+  },
   "processing": {
     "title": "Signing you in …",
     "copy": "One moment please while we prepare your dashboard."