20211215
localization: Add translation using Weblate (Finnish)
Remove traceroute6
Update Czech translation
Translated using Weblate (German)
Translated using Weblate (Finnish)
localization: Remove fuzzy mark
po: Update iputils.pot and *.po files
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Translated using Weblate (Korean)
po: Update instructions
Translated using Weblate (Turkish)
Translated using Weblate (Ukrainian)