Translate en.json in es

99% of minimum 80% translated source file: 'en.json'
on 'es'.

Sync of partially translated files: 
untranslated content is included with an empty translation 
or source language content depending on file format

Author: transifex-integration[bot]

apps/web-mzima-client/src/assets/locales/es.json

@@ -2605,7 +2605,7 @@
     "cy": "Galés",
     "cy-GB": "Galés (United Kingdom)",
     "fy": "Frisón Occidental",
-    "fy-NL": "Western Frisian (Netherlands)",
+    "fy-NL": "Frisón Occidental (Países Bajos)",
     "wo": "Wolof",
     "wo-SN": "Wolof (Senegal)",
     "xh": "Xhosa",