Blog references are not correctly handled in search

[Didier-Lalli]

When searching for a topic for example "webhook" you find 1 result which is Lionel's blog on COM Webhooks, but when you select it you see an empty blog (just the meta data)

Instead of the full external blog on: https://jullienl.github.io/Implementing-webhooks-with-COM/

We need to apply the same logic that is applied in the blog page when clicking on one of those blog reference.

[choukden]

This is true for all the blog link cards (Chapel, Determined AI, etc.) in the "Search" feature.