The setting is initially assigned the name of the Godot project,
but it's kept freezed to prevent issues when renaming the Godot
project.
The user can always rename the C# project and solution manually and
change the setting to the new name.
Co-authored-by: Ignacio Roldán Etcheverry <ignalfonsore@gmail.com>
(cherry picked from commit 31d09a807e)