Сonfig description should include a list of tabs

To render navigation for Settings dynamically in the sidebar menu in Admin-FE GET /api/pleroma/admin/config/descriptions should return a list of tabs:

{ tabs: [
    { label: 'ActivityPub', path: 'activity-pub' },
    { label: 'Authentication', path: 'authentication' },
    { label: 'Captcha', path: 'captcha' },
    { label: 'BBS / SSH access', path: 'esshd' },
    { label: 'Emoji', path: 'emoji' },
    { label: 'Frontend', path: 'frontend' },
    { label: 'Gopher', path: 'gopher' },
    { label: 'HTTP', path: 'http' },
    { label: 'Instance', path: 'instance' },
    { label: 'Job queue', path: 'job-queue' },
    { label: 'Link Formatter', path: 'link-formatter' },
    { label: 'Logger', path: 'logger' },
    { label: 'Mailer', path: 'mailer' },
    { label: 'Media Proxy', path: 'media-proxy' },
    { label: 'Metadata', path: 'metadata' },
    { label: 'MRF', path: 'mrf' },
    { label: 'Rate limiters', path: 'rate-limiters' },
    { label: 'Relays', path: 'relays' },
    { label: 'Web push encryption', path: 'web-push' },
    { label: 'Upload', path: 'upload' },
    { label: 'Other', path: 'other' }
  ],
  config: [...]
}