[Scenario Editor] Magic book with default spell should be present in the four heroes of magic screens

[LeHerosInconnu]

Preliminary checks

• [X] I've checked that there aren't other open issues on the same topic.
• [X] I've checked that this issue is reproducible on the latest snapshot build.

Platform

Windows

Describe the bug

The magic book should be present, with the default spell, and with the text "Default magic book" in the four heroes of magic screens.

In fheroes2:

Save file

Not needed.

Additional info

No response