Update missing text

Author: VictoriousRaptor

Flow.Launcher/Languages/en.xaml

@@ -92,6 +92,7 @@
     <system:String x:Key="plugin_query_time">Query time:</system:String>
     <system:String x:Key="plugin_query_version">| Version</system:String>
     <system:String x:Key="plugin_query_web">Website</system:String>
+    <system:String x:Key="plugin_uninstall">Uninstall</system:String>
 
 
     <!--  Setting Plugin Store  -->