fix #23543: additional update for acidentals
beam mode for grace notes
add ScoreFont to Symbol class; extend master palette symbols dialog; misc cleanups
merge Ambitus
hide noteHeads array
fix mtest
remove QtTraceMsg
add vtest for note heads
Merge pull request #568 from AntonioBL/gracenotesbeam

Beam mode for grace notes, based on the code for normal notes.
Merge pull request #566 from Isensee/23543-update_accidental

fix #23543: additional update for acidentals
fix SymbolDialog in master palette
remove timesig values from inspector