KFontChooser: fix selecting style name in the chooser
familyListWidget->setCurrentRow() would select the first style in the list, then later on the correct style is selected, the issue is that the call to setCurrentRow() has already caused m_selectedFont to change; by moving the the styleIdentifier() call up, we get the styleId we want.
Also change the test app to select a font with an unusual style name.
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