Link to latest LTS docs.

[geriom]

Feature request

As a user I would like to to quickly find documentation for both the latest release and the latest LTS release of a componenet.

Use case

Currently both Dashboard and Pipelines have LTS releases. Although you can access those docs from the "Latest Versions" menu, it is not clear which documentation is the one available on the main docs/. A disclaimer explaining what version of a component are the current docs covering, with relevant links to LTS and/or latest release would be a good improvement.

[geriom]

/assign

[geriom]

Feature added in #516