fix(router): update AuthenticationPage route after refactor

Removes the now-deleted `headline`, `subHeadline`, and `showAnonymousButton` parameters from the `AuthenticationPage` constructor within the GoRouter configuration. This aligns the router with the recent localization and simplification of the `AuthenticationPage` widget.

Author: fulleni

lib/router/router.dart

@@ -97,19 +97,11 @@ GoRouter createRouter({
         path: Routes.authentication,
         name: Routes.authenticationName,
         builder: (BuildContext context, GoRouterState state) {
-          const headline = 'Sign In to Dashboard';
-          const subHeadline = 'Enter your email to get a verification code.';
-          const showAnonymousButton = false;
-
           return BlocProvider(
             create: (context) => AuthenticationBloc(
               authenticationRepository: context.read<HtAuthRepository>(),
             ),
-            child: const AuthenticationPage(
-              headline: headline,
-              subHeadline: subHeadline,
-              showAnonymousButton: showAnonymousButton,
-            ),
+            child: const AuthenticationPage(),
           );
         },
         routes: [