fix #24102: pedal sounds in wrong instrument

pedal was always being applied to top part of score rather than the part
actually applied to
fix #23366: yet another left over CamelCase...
handle channel changes too
fix #23999: instrument change produces incorrect mixer details
fix #24245: slurs in voice > 1 attach to wrong voice on load
fix #24574

use flat and sharp symbols in dialogs and tooltips
fix #24635: Wrong octave in note entry after a line break
some more changes for fix #24574

these may need further changes though to become translatable
fix #24624: [MusicXML] Parentheses around a note head is not exported
fix #24289: typo in effects/zita1/mixsect.png
Only ASCII in .cpp files

using \u266d for b and \u266f for #
fix typo
fix #24628: Play always starts in the wrong place + fixes for loop playback and repeat
fix #24623: [MusicXML] Line style for ties not exported
Merge pull request #694 from Jojo-Schmitz/24574-flat-and-sharp-symbols-in-tooltips-and-dialogs

Use flat and sharp symbols in tooltips and dialogs
fix #24574: two more changes to tooltips
No html needed here

eases the process of translating
back to # and b for translatable strings in CPP files

due to a bug in lupdate, see
https://bugreports.qt-project.org/browse/QTBUG-35164
fix #23043: Playing score with Loop enabled causes crash
revert back to plain # and b in CPP files

but also make these strings translatable