update per review

Author: jjw24

Flow.Launcher/HotkeyControl.xaml.cs

@@ -18,13 +18,7 @@ public partial class HotkeyControl : UserControl
 
         public event EventHandler HotkeyChanged;
 
-        protected virtual void OnHotkeyChanged()
-        {
-            EventHandler handler = HotkeyChanged;
-
-            if (handler != null)
-                handler(this, EventArgs.Empty);
-        }
+        protected virtual void OnHotkeyChanged() => HotkeyChanged?.Invoke(this, EventArgs.Empty);
 
         public HotkeyControl()
         {

Flow.Launcher/Languages/en.xaml

@@ -46,7 +46,7 @@
     <system:String x:Key="browserMorePlugins">Find more plugins</system:String>
     <system:String x:Key="enable">Enable</system:String>
     <system:String x:Key="disable">Disable</system:String>
-    <system:String x:Key="actionKeywords">Query</system:String>
+    <system:String x:Key="actionKeywords">Action keyword:</system:String>
     <system:String x:Key="currentActionKeywords">Current action keyword:</system:String>
     <system:String x:Key="newActionKeyword">New action keyword:</system:String>
     <system:String x:Key="currentPriority">Current Priority:</system:String>
@@ -73,6 +73,7 @@
     <system:String x:Key="openResultModifiers">Open Result Modifiers</system:String>
     <system:String x:Key="showOpenResultHotkey">Show Hotkey</system:String>
     <system:String x:Key="customQueryHotkey">Custom Query Hotkey</system:String>
+    <system:String x:Key="customQuery">Query</system:String>
     <system:String x:Key="delete">Delete</system:String>
     <system:String x:Key="edit">Edit</system:String>
     <system:String x:Key="add">Add</system:String>

Flow.Launcher/SettingWindow.xaml

@@ -365,7 +365,7 @@
                                     </DataTemplate>
                                 </GridViewColumn.CellTemplate>
                             </GridViewColumn>
-                            <GridViewColumn Header="{DynamicResource actionKeywords}" Width="546">
+                            <GridViewColumn Header="{DynamicResource customQuery}" Width="546">
                                 <GridViewColumn.CellTemplate>
                                     <DataTemplate DataType="userSettings:CustomPluginHotkey">
                                         <TextBlock Text="{Binding ActionKeyword}" />