email confirm template, fix admin login, try fix translation error logs

pages/auth/signin.tsx

@@ -65,7 +65,7 @@ export default function SignIn({ csrfToken }) {
                                 <label htmlFor="email" className="block text-sm font-medium text-gray-700">имейл</label>
                                 <input
                                     id="email"
-                                    type="email"
+                                    type="text" // allow non-email addresses for username (admins)
                                     value={email}
                                     onChange={(e) => setEmail(e.target.value)}
                                     className="mt-1 block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm"