FMT bis + delete deprecated functions

src/module/module_qt_window.hh

src/module/qt_window/mainwindow.hh

src/module/qt_window/mpvwidget.cc

src/module/qt_window/mpvwidget.hh

src/module/qt_window/mpvwidget_interface.hh

src/module/qt_window/qthelper.hh

utils/scripts/style.bash