Fretboard diagrams: remove some "Set as style" buttons
OS: Windows 10 (10.0), Arch.: x86_64, MuseScore version (64-bit): 188.8.131.5241, revision: e06ea8e
Certain style options for Fretboard diagrams are inapplicable, and the "Set as Style" button should be removed for the following properties: Barré: In real life no user would want to apply the same barré number to all diagrams in the score. It would also force a spurious barré on diagrams added from a palette. Offset: (i.e. position number) The same applies.
Related to #283681: [EPIC] Fretboard diagram issues.