New translations en.xaml (Spanish, Latin America)

[ci skip]

Author: jjw24

Flow.Launcher/Languages/es-419.xaml

@@ -13,6 +13,7 @@
 
     <!--  MainWindow  -->
     <system:String x:Key="registerHotkeyFailed">Failed to register hotkey &quot;{0}&quot;. The hotkey may be in use by another program. Change to a different hotkey, or exit another program.</system:String>
+    <system:String x:Key="unregisterHotkeyFailed">Failed to unregister hotkey &quot;{0}&quot;. Please try again or see log for details</system:String>
     <system:String x:Key="MessageBoxTitle">Flow Launcher</system:String>
     <system:String x:Key="couldnotStartCmd">No se pudo iniciar {0}</system:String>
     <system:String x:Key="invalidFlowLauncherPluginFileFormat">Formato de archivo de plugin Flow Launcher inválido</system:String>