Provide a way to disable home page cards

[rrigal-lo]

When running in an air-gapped environment, the three cards at the bottom (Documentation, Release Notes and Blog Posts) of the overview page are unable to load and the following error message appears:

DoJsonRequest Error: [GET]https://raw.githubusercontent.com/bentoml/yatai-homepage-news/main/news.json: Get "https://raw.githubusercontent.com/bentoml/yatai-homepage-news/main/news.json": net/http: TLS handshake timeout

It would be nice if you could provide a way to disables these cards. Thank you.