Pontoon: Update Guarani (gn) localization of Firefox Monitor Website

Localization authors:
- Abelardo Ayala Rodríguez <abe_aya@hotmail.com>

locales/gn/app.ftl

@@ -114,6 +114,10 @@ change-pw = Emoambue ñe’ẽñemi
 change-pw-site = Emoambue ñe’ẽñemi ko tendápe g̃uarã
 make-new-pw-unique = Ejapo ñe’ẽñemi pyahúgui iñambue ha ha’eñóva
 create-strong-passwords = Mba’éicha emoheñóita ñe’ẽñemi hekorosãva
+stop-reusing-pw = Anive eipuru peteĩ ñe’ẽñemi memete
+five-myths = 5 mombe’ugua’u ñe’ẽñemi ñangarekoha rehegua
+feat-security-tips = Tekorosãrã emo’ã hag̃ua ne mba’ete
+feat-sensitive = Jeheka ha’evéva ñembyai ñemiguávape
 check-for-breaches = Eheka ñembyai
 back-to-top = Ejevy ñepyrũhápe
 stop-monitoring-this = Anive ehechaiterei ko ñanduti veve kundaharape.