fix 30281

Fix readability
Optimize string allocation
	modified:   libmscore/accidental.cpp
	modified:   libmscore/ambitus.cpp
	modified:   libmscore/articulation.cpp
	modified:   libmscore/barline.cpp
	modified:   libmscore/chord.cpp
	modified:   libmscore/chordline.cpp
	modified:   libmscore/chordrest.cpp
	modified:   libmscore/dynamic.cpp
	modified:   libmscore/fingering.cpp
	modified:   libmscore/hairpin.cpp
	modified:   libmscore/harmony.cpp
	modified:   libmscore/jump.cpp
	modified:   libmscore/keysig.cpp
	modified:   libmscore/marker.cpp
	modified:   libmscore/measure.cpp
	modified:   libmscore/note.cpp
	modified:   libmscore/ottava.cpp
	modified:   libmscore/rest.cpp
	modified:   libmscore/score.h
	modified:   libmscore/tempotext.cpp
	modified:   libmscore/text.cpp
	modified:   libmscore/timesig.cpp
	modified:   libmscore/tremolo.cpp
	modified:   libmscore/trill.cpp
	modified:   libmscore/volta.cpp
	modified:   mscore/scoreaccessibility.cpp
Added staff to info
	modified:   mscore/scoreaccessibility.cpp
Merge pull request #1193 from andreituicu/fix_30281

Fix 30281