Start to use KDECompilerSettings
There are several issues making the CI fail we should fix before merging this. Also we may enable the remaining definitions:
QT_NO_CAST_FROM_ASCII
QT_NO_CAST_FROM_BYTEARRAY
QT_NO_NARROWING_CONVERSIONS_IN_CONNECT
There are several issues making the CI fail we should fix before merging this. Also we may enable the remaining definitions:
QT_NO_CAST_FROM_ASCII
QT_NO_CAST_FROM_BYTEARRAY
QT_NO_NARROWING_CONVERSIONS_IN_CONNECT