Search for multiple words does not work

[JohannesLorenz]

If you insert 128 and 10 into the search text field (top left, main window), it searches for "128 10", instead for songs that have 128 and ten in (possibly) different columns. This is annoying: You can not search for 128 kbps files with a rating of 10.

How to fix? Maybe just a change of the flags in MainWindow.cpp

tableWidget.findItems(text, Qt::MatchContains);

or otherwise, we might need to split the string and parse one substring after another.