Add robots meta tag to prevent search engine indexing
What does this MR do and why?
This MR adds a robots meta tag to the HTML header to prevent search engine indexing and scraping of GitLab pages.
%meta{ name: 'robots', content: 'noindex, nofollow' }
This change helps reduce the likelihood of publicly exposed GitLab instances appearing in search engine results, improving privacy and security.
Potential impacts
For deployments that are intentionally public, this will prevent search engines from indexing GitLab pages.
Administrators who wish their instance to remain indexable should remove or override this meta tag in their custom theme or configuration.