When the `ServerManagement` permission is granted, you should be able to do everything in the system.
Maybe I should rename it to GodMode as a permission to not have any confusion with managing server settings (currently `ServerManagement`)?
Builds on #1368
This PR adds a new endpoint: Get current user.. It only returns the current user's id and email for now( let's extend later)
It also adds a new permission: `ProfileManagement` which is needed for this endpoint (and for update endpoints later)