Possibility to use relations as media in templates

Is your feature request related to a problem? Please describe.

Right now, for example, when defining the template there is no possibility to add the website relation (i.e., link) as a bookmark media in order to have the nice preview effect.

Describe the solution you’d like

The solution would be to add the possibility to use relations as media in templates.

Additional context

In the current situation, when using the command to insert the relation inside the media, it does not pop up the menu to add the relation.