[Unknown Mod][Locations][Witch's Hut] Display the secondary skill graphic in the witch's hut window when the hero visiting it already has the secondary skill or cannot learn it

[LeHerosInconnu]

Display the secondary skill graphic in the witch's hut window when the hero visiting it already has the secondary skill or cannot learn it.
The secondary skill graphic is displayed between the first part of the text and the end of the text.

In the example, between:

"...tome of Wisdom.", and "...tome of Pathfinding."

And:

"As you approach,..."

Reference windows: (click to expand)

The hero learns the secondary skill:

The hero already knows the secondary skill:

The hero has no free slots left to learn the secondary skill:

A specific sound, indicating “disappointment,” is also played when this happens.
This also allows the player to right click on the secondary skill graphic to display the secondary skill information window.

This is not an option.
This can be implemented directly in fheroes2.