Update the too small/large modals to hint about the auto-detected size

[Rangi42]

People often edit a map's size, forget to update map_constants.asm, and then reopen the map with the default size selected, which comes from map_constants.asm. Thus the size they open it with is now too large or small, and they get an error. The error should remind them to change the map size in asm.

Alternatively, we could default to a valid size, not the one from asm. But that would be misleading, since people would build their game and wonder why the map looks wrong.

[Engezerstorung]

you could add a message saying that the map file size doesnt match the one defined in constant, it will point them to the issue