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

I'm trying to use Joomla REST API for the backend and use a JS framework to build the frontend.
Looking at the REST API, it seems to be tricky to understand the content of a menu-alias.
For example, how can i know all the modules, content ecc... associated to a menu alias?
At the moment, i have to loop all the modules and filter it for a menu alias every time.

Describe the solution you'd like

I think could be useful, to have an endpoint where given a menu-alias i can retrieve everything associated to that alias.
Like article, modules ecc...