Camera fixes with Cinemachine

[BenKellySoftware]

Feature description
We want to replace our current camera set-up with cinemachine to extend the controls

Acceptance criteria/subtasks

• Refit drag, rotate, and zoom controls
• Have system to set a minimum height when moving over objects in the map (i.e. the mountain ranges)
• Move camera when the cursor is on the edge of the screen
• Move camera with the arrow keys