Level 2 camera transitions

[ISupertwister]

Summary

• Added camera transitions for Rooms 1, 3, 4 and the Elevator
• Added a vertical-only camera follow mode for the waterfall staircase
• Integrated the camera setup into the latest Level 2 scene

Testing

• Tested all camera transitions in Level 2
• Verified return to normal camera follow
• Verified Room 5 vertical follow behavior
• Verified trigger exit and re-entry behavior

[AndreuMiroSabate]

The normal cameras transitions are good and they look right.
The vertical camera transition is a no for me. The level is not prepared to have that camera angle and it doesn't look cool, I would change it or eliminate it directly.
Also is cool that you updated the level in your pr, but we need to be careful, because there are other pr before this one that modify the level 2, so one of the changes will be lost and redone.