Cinematic mode with camera fly-through

[ThatRobVK]

Is your feature request related to a problem? Please describe.
It is difficult to create good looking sample videos due to selection highlights popping up and the manual camera controls not being smooth and accurate enough.

Describe the solution you'd like
Create a cinematic mode in which the UI is hidden and the map can't be interacted with, i.e. no selection highlights or ability to select any objects. It should be possible to configure the camera to go through certain points, similar to the Cinemachine camera, but controllable in-game (maybe that can be done with Cinemachine?)