## Issue
7166 improve search metadata
Depending on the search term and timing, Google extracts data from the sidebar or page content to use as the search-result description.
## Change
Defined `description` (on top of the existing `og:description` and `twitter:description`.
While I couldn't find a definitive doc saying that this is the solution, this is present in all other sites (and matches their description in a Google Search results).
