LZ: Outro missing images for different endings

The game has currently support for 4 different kind of endings depending on how many books the user finds from 0 to 3, but due to lack of time no pictures were drawn for all the endings so now the games has the same picture for all endings.

The current outro starts with:
- outro_1.png
and is followed by:
- end_picture_0
- end_picture_1
- end_picture_2
- end_picture_3
...depending on how many books were found.

These 4 end_picture_\* images could have unique images including short stories of how the character survived with the help of the found books.

Start by locating the outro flow that uses outro_1.png and the end_picture_0 through end_picture_3 assets. Review how the ending is selected from the number of books found, then create distinct images and short survival stories for all four outcomes. Done means each book count displays its corresponding unique ending.

Written by the indexing model from the issue text.