Fix unit tests failing after "Lines" table removal

 tests.js

@@ -33,9 +33,9 @@
    
    casper.wait(200, function() {
        test.assertSelectorHasText(
            '[data-translate=header_lines]',
            'Linie',
            'Translation: Lines -> Linie'
            '[data-translate=header_line]',
            'Linia',
            'Translation: Line -> Linia'
        );
    });