Demo hotfix 2

This is a patch for the pre-release version of the demo.

Changelog:

• Made the previously unobtainable codex entry #3 obtainable within the first few lines of the opening sequence;

• The mouse scroll wheel now moves the game forward;

• To prevent compatibility issues with the full version of the game, purged rollback in the credits scene;

• Miscellaneous text fixes;

A special thank you to the early players for the feedback ːsotaloveː