Pontoon: Update Shona (sn) localization of Test Pilot: Firefox Send

Localization authors:
- tatalmondmush <tatalmondmush@gmail.com>

public/locales/sn/send.ftl

@@ -2,3 +2,19 @@
 title = Firefox Send
 siteFeedback = Zvirikutaurwa
 uploadPageLearnMore = Dzidza zvimwe
+# Used as header in a column indicating the amount of time left before a
+# download link expires (e.g. "10h 5m")
+timeFileList = Nguva
+deletePopupYes = Hongu
+changePasswordButton = Shandura
+enableJavascript = Ndinokumbira mubvumidze JavaScript moedza zvekare
+# A short representation of a countdown timer containing the number of hours and minutes remaining as digits, example "13h 47m"
+expiresHoursMinutes = { $hours }maawa { $minutes }mineti
+# A short representation of a countdown timer containing the number of minutes remaining as digits, example "56m"
+expiresMinutes = { $minutes }mineti
+# A short status message shown when a password is successfully set
+passwordIsSet = Pasiwedhi yaita
+# A short status message shown when the user enters a long password
+maxPasswordLength = Pasiwedhi haipfuuri mavara:{ $length }
+# A short status message shown when there was an error setting the password
+passwordSetError = Pasiwedhi haina kuita