fix typo

Author: VictoriousRaptor

Plugins/Flow.Launcher.Plugin.Program/Languages/en.xaml

@@ -39,7 +39,7 @@
 
     <system:String x:Key="flowlauncher_plugin_program_pls_select_program_source">Please select a program source</system:String>
     <system:String x:Key="flowlauncher_plugin_program_delete_program_source">Are you sure you want to delete the selected program sources?</system:String>
-    <system:String x:Key="flowlauncher_plugin_program_duplicate_program_source">Another program source with the same location alreaday exists.</system:String>
+    <system:String x:Key="flowlauncher_plugin_program_duplicate_program_source">Another program source with the same location already exists.</system:String>
 
     <system:String x:Key="flowlauncher_plugin_program_edit_program_source_title">Program Source</system:String>
     <system:String x:Key="flowlauncher_plugin_program_edit_program_source_tips">Edit directory and status of this program source.</system:String>