fixed minor plural translation not working

[kaustuvpokharel]

Changed the string to use rules instead of arg which doesn't properly translate

[tomasMizera]

Please check other places for the plural form strings

[github-actions]

Pull Request Test Coverage Report for Build 19667093873

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 22 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.1%) to 59.608%

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Files with Coverage Reduction	New Missed Lines	%
mm/core/merginuserauth.cpp	9	68.24%
mm/core/merginapi.cpp	13	75.15%

Totals
Change from base Build 19633950309:	-0.1%
Covered Lines:	8524
Relevant Lines:	14300

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💛 - Coveralls

[tomasMizera]

Looks good 👍🏻

[tomasMizera]

We'll test this on RC (cc @IvaKuklica @RastoHu )