Feature Request: Show shared mailboxes statistics

[tech-squid]

Is your feature request related to a problem? Please describe.
Currently only user mailboxes are visible on the Mailbox Statistics page.

Describe the solution you'd like
Shared mailboxes could be added to the existing list, have them become visible with a toggle or even get their own page called "Shared Mailbox Statistics".

[KelvinTegelaar]

Microsoft doesn't expose these currently via the graph API, I've tried retrieving them using the classical method but that takes a lot of time. @gavsto Maybe you can check this one out?

[gavsto]

So I've had a look in to this and it is not going to be simple to do. The reports that we rely on pulling from the Graph just don't include these statistics in them and there is no graph alternative I can find to get these statistics.

If you can present a graph/API endpoint we can hit we can re-visit this, but for now there's no realistic way to implement this I'm afraid.