Asset meta title on non-overview page is missing the asset name when shared on Slack

[mattrosno]

Description

When you go to a URL like this:

https://next-test.carbondesignsystem.com/libraries/carbon-react/v11.21.0/assets/accordion/usage

The meta title properly starts with Usage - .

But when sharing it in Slack, the social preview omitted Usage from the start of the meta title, but yet it worked for the overview page.

My guess is that it's a race condition with how we're building the usage, style, code, and accessibility pages differently than the overview page.

This is a super minor bug, because we've disabled crawling on the site while on a subdomain. When going to the top-level domain, we'll want to ensure that non-overview pages like usage will have full content crawled.