New translations en.xaml (Spanish (Modern))

[ci skip]

Author: jjw24

Flow.Launcher/Languages/es.xaml

@@ -368,6 +368,7 @@ Si añade un prefijo "@" al introducir un acceso directo, éste coinci
     <system:String x:Key="commonOK">Aceptar</system:String>
     <system:String x:Key="commonYes">Si</system:String>
     <system:String x:Key="commonNo">No</system:String>
+    <system:String x:Key="commonBackground">Fondo</system:String>
 
     <!--  Crash Reporter  -->
     <system:String x:Key="reportWindow_version">Versión</system:String>