Redirect anonymous to FE route

Problem/Motivation

Redirect traffic to FE site when
- Anonymous
- Validate certain routes as:

  private $excludeRoutes = [
    'name' => [
      'user.login',
      'user.login.http',
      'user.pass',
      'user.reset',
      'user.reset.login',
      'oauth2_token.token',
    ],
    // @todo Add JSON:API routes to exclude.
    'path' => [
      '/graphql?*',
      '/sites/default/files/*',
    ],
  ];

- Make redirect configurable