Pontoon: Update Spanish (Spain) (es-ES) localization of Firefox Send

Co-authored-by: Paulina Rodriguez <pauli.rodriguez.c@gmail.com>
Co-authored-by: Gery Escalier <geryescalier@yahoo.com>
Co-authored-by: jlG <jlg.l10n.es@gmail.com>
Co-authored-by: timvisee <tim@visee.me>

public/locales/es-ES/send.ftl

@@ -1,8 +1,8 @@
 title = Send
 siteFeedback = Comentario
 importingFile = Importando...
-encryptingFile = Encriptando...
-decryptingFile = Desencriptando...
+encryptingFile = Cifrando...
+decryptingFile = Descifrando...
 downloadCount =
     { $num ->
         [one] 1 descarga