Refactor magnet link copy function #3489

Job	Run time
changes	9s
env	1s
gatekeeper	7s
documentation / build	22s
coverage_draft / generate and upload	2m 10s
application_tester_draft / run (ubuntu-latest)	5m 10s
application_tester / run (windows-latest)	4m 9s
guitest / run (ubuntu-latest)	1m 44s
application_tester / run (macos-13)	3m 23s
guitest_draft / run (windows-latest)	2m 24s
guitest / run (macos-13)	1m 50s
mac / build	9m 36s
scripttest_draft / run	1m 16s
pytest / run (windows-latest)	4m 22s
pytest / run (macos-13)	3m 48s
windows / build	46s
ubuntu / build	12m 38s
	53m 55s

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