Minor fixes and updates

Fixed and updated some outdated values:

- Fixed an exception caused by the old name of a value which changed when updating to EM 1.21+

- Replaced the mechanisms that prevented the player from forcing the phase change of cinematics, now implementing the new, more efficient mechanism used in current 1.21+ projects.

- Added a protective barrier for the boss in the second phase.

- Changed the color of the subtitle on the screen when defeating the boss, the color changed from gray to white.