FIX: Safari iOS page title and url regression when sharing (PR #11699)

This fixes an issue reported by customers when sharing using Safari on iOS 14.3. As a user navigates the site, Safari doesn’t use the current URL and page title, but instead it uses the meta OG tags, which are only set on the first page load.

This PR updates those OG tags when navigating the site (on all browsers, not just Safari, given that the updated data is correct everywhere).

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