Allow a setting to suppress link preview images on Help Center articles

There is currently no way to prevent the og:image tag from being populated on Help Center article pages. Customers and internal teams sharing article links in Slack see large, disruptive full-width image previews. We'd like the ability to leave og:image empty so links unfurl with text on

Note: Favicon incorrectly used as og:image on Help Center article pages following mid-May 2026 rebrand from Intercom to Fin. Prior to mid-May 2026, Help Center article URLs shared in Slack unfurled with just a title and description—no image. Following Intercom's rebrand to Fin, article pages now populate og:image with the favicon, causing large full-width image previews in Slack. This appears to be a regression caused by a change on Intercom's end, not a configuration change on our end.