Bug: Enabling oauth registration shows all oauth providers even if unconfigured.

[kashalls]

What happened?

When passing FEATURES_OAUTH_REGISTRATION as true, all three oauth providers will be shown.

What should happen?

Only the configured oauth providers should show up as clicking on any of them results in Internal Server Error.

Version

latest (ghcr.io/diced/zipline or ghcr.io/diced/zipline:latest)

What browser(s) are you seeing the problem on?

Firefox, Chromium-based (Chrome, Edge, Brave, Opera, mobile chrome/chromium based, etc), Firefox Mobile

Zipline Logs

No relevant logs were outputted.

Browser Logs

No relevant logs were outputted.

Additional Info

{
  core: {
    secret: 'censored',
    database_url: 'postgres://censored:censored@postgres-rw.default.svc.cluster.local:5432/zipline',
    return_https: true,
    temp_directory: '/tmp/zipline',
    host: '0.0.0.0',
    port: 3000,
    logger: false,
    stats_interval: 1800,
    invites_interval: 1800,
    thumbnails_interval: 600,
    compression: { enabled: false, threshold: 2048, on_dashboard: true }
  },
  datasource: {
    type: 's3',
    local: { directory: './uploads' },
    s3: {
      access_key_id: 'censored',
      secret_access_key: 'censored',
      endpoint: 'rook-ceph-rgw-ceph-objectstore.rook-ceph.svc',
      bucket: 'zipline-v1',
      port: 80,
      force_s3_path: true,
      region: 'us-east-1',
      use_ssl: false
    }
  },
  uploader: {
    default_format: 'DATE',
    route: '/censored',
    embed_route: '/censored',
    length: 6,
    admin_limit: 107374182400,
    user_limit: 524288000,
    disabled_extensions: [ 'ps1', 'pdf', 'bat', 'exe', 'sh', 'fish' ],
    format_date: 'YYYY-MM-DD_HH-mm-ss',
    default_expiration: null,
    assume_mimetypes: false
  },
  urls: { route: '/censored', length: 6 },
  ratelimit: { user: 5, admin: 1 },
  website: {
    title: 'Zipline',
    show_files_per_user: false,
    show_version: true,
    disable_media_preview: false,
    external_links: [
      {
        label: 'Powered by Zipline',
        link: 'https://github.com/diced/zipline'
      }
    ]
  },
  discord: null,
  oauth: null,
  features: {
    invites: false,
    invites_length: 16,
    oauth_registration: true,
    oauth_login_only: false,
    user_registration: false,
    headless: false,
    default_avatar: null,
    robots_txt: false,
    thumbnails: false
  },
  chunks: { max_size: 94371840, chunks_size: 20971520, enabled: true },
  mfa: { totp_issuer: 'Zipline', totp_enabled: false },
  exif: { enabled: false, remove_gps: true },
  ssl: null
}```

[kashalls]

I'm not too familiar with next, but I would assume the issue is here with the truthyness of these statements here:
https://github.com/diced/zipline/blob/713f857e28caa4b3b7eb72f88625b31c7be8adc6/src/lib/middleware/getServerSideProps.ts#L29C14-L29C32