add colon to Priority text for consistency

Author: jjw24

Flow.Launcher/Languages/en.xaml

@@ -51,6 +51,7 @@
     <system:String x:Key="newActionKeyword">New action keyword:</system:String>
     <system:String x:Key="currentPriority">Current Priority:</system:String>
     <system:String x:Key="newPriority">New Priority:</system:String>
+    <system:String x:Key="priority">Priority:</system:String>
     <system:String x:Key="pluginDirectory">Plugin Directory</system:String>
     <system:String x:Key="author">Author</system:String>
     <system:String x:Key="plugin_init_time">Init time:</system:String>

Flow.Launcher/SettingWindow.xaml

@@ -180,7 +180,7 @@
                                        Text="{Binding PluginPair.Metadata.Description}"
                                        Grid.Row="1" Opacity="0.5" Grid.Column="2" />
                             <DockPanel Grid.ColumnSpan="2" Grid.Row="2" Margin="0 10 0 8" HorizontalAlignment="Right">
-                                <TextBlock Text="Priority" Margin="15,0,0,0" MaxWidth="100"/>
+                                <TextBlock Text="{DynamicResource priority}" Margin="15,0,0,0" MaxWidth="100"/>
                                 <TextBlock Text="{Binding Priority}"
                                             ToolTip="Change Plugin Results Priority"
                                             Margin="5 0 0 0" Cursor="Hand" Foreground="Blue"