Use QByteArrayView more
Commit 1: use QByteArrayView for drm property and enum names. Removes all the annoying QByteArrayLiterals
Commit 2: don't use will have to wait for CI to use Qt 6.5QByteArrayLiterals for qputenv. It uses QByteArrayView, so the strings aren't copied either way
Edited by Xaver Hugl