move default content search action keyword string to constants

Author: jjw24

Plugins/Flow.Launcher.Plugin.Explorer/Search/Constants.cs

@@ -22,6 +22,8 @@ internal static class Constants
 
         internal const char AllFilesFolderSearchWildcard = '>';
 
+        internal const string DefaultContentSearchActionKeyword = "doc:";
+
         internal const char DirectorySeperator = '\\';
 
         internal const string WindowsIndexingOptions = "srchadmin.dll";

Plugins/Flow.Launcher.Plugin.Explorer/Settings.cs

@@ -1,4 +1,5 @@
-using Flow.Launcher.Plugin.Explorer.Search.FolderLinks;
+using Flow.Launcher.Plugin.Explorer.Search;
+using Flow.Launcher.Plugin.Explorer.Search.FolderLinks;
 using Newtonsoft.Json;
 using System.Collections.Generic;
 
@@ -22,6 +23,6 @@ public class Settings
         public string SearchActionKeyword { get; set; } = Query.GlobalPluginWildcardSign;
 
         [JsonProperty]
-        public string FileContentSearchActionKeyword { get; set; } = "doc:";
+        public string FileContentSearchActionKeyword { get; set; } = Constants.DefaultContentSearchActionKeyword;
     }
 }