sensible default for tempo text
add language files manager to download translations from the web
more fixes for 1.3 slurs import
update mtest
make instruments dialog persistent
fix #22919
fix #22093: Crash when selecting fixed pitch LH/RH separation
change suggestedLateny back to 100ms on windows
Merge pull request #497 from trig-ger/midi_fixes

fix #22093: Crash when selecting fixed pitch LH/RH separation
fix #22928: Slur of tablature in linked stave ends on note of pitched stave
first try to use the system proxy for all network communication
fix #22978
fix #22978: crash on loading 1.3 scoresw with empty cleflist and ledger lines
fix slur insertion when range selected
fix #22992
fix typo!
fix #22997: Spanners in MusicXML crash MuseScore
fix #23000: Undo does not restore former sizing of stem
fix #22796: disable 'go to next/previous measure' button, if there is no such measure