Fix Verbose output with Qt 6 and "View parent source"

[coveralls]

Pull Request Test Coverage Report for Build 4875288309

• 9 of 30 (30.0%) changed or added relevant lines in 3 files are covered.
• 5 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+47.5%) to 58.376%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
linkcheck_gui/urlsave.py	0	1	0.0%
linkcheck_gui/library/url.py	4	24	16.67%
<!--	Total:	9	30	30.0%	-->

Files with Coverage Reduction	New Missed Lines	%
linkcheck_gui/init.py	5	73.28%
<!--	Total:	5		-->

Totals
Change from base Build 4853788451:	47.5%
Covered Lines:	1697
Relevant Lines:	2907

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💛 - Coveralls