[skip CI] Translate dde-dock.ts in es

100% translated source file: 'dde-dock.ts'
on 'es'.

Author: transifex-integration[bot]

plugins/dde-dock/translations/dde-dock_es.ts

@@ -363,7 +363,7 @@
     </message>
     <message>
         <source>Visual effect</source>
-        <translation>Efecto visual</translation>
+        <translation>Descanso visual</translation>
     </message>
 </context>
 <context>