Pontoon: Update Setswana (tn) localization of Common Voice
Pontoon: Update Setswana (tn) localization of Common Voice

Co-authored-by: rone <598c5a4fc3e540436c0ea27a18d5880c13ab7ca9@viva-afrikaans.org>

common-voice/common-voice,common-voice/common-voice,common-voice/common-voice,common-voice/common-voice