fix #28356: add MuseJazz as a musical text font

Added necessary glyphs at appropriate SMuFL codepoints to allow segno, coda, and notes for tempo markings to work.  Others (e.g. dynamics, pedal) will fall through to default (Bravura Text).

@werner: Removing this line made the fallback work, otherwise, I get empty boxes for symbols like dynamics that I do not define in MuseJazz.  I don't know if there is a different way I should have done this.