add backwards compatibility

Author: jjw24

Flow.Launcher.Infrastructure/UserSettings/PluginSettings.cs

@@ -16,11 +16,13 @@ public void UpdatePluginSettings(List<PluginMetadata> metadatas)
                 {
                     var settings = Plugins[metadata.ID];
 
-                    // TODO: Remove. This is one off for 1.2.0 release.
-                    // Introduced a new action keyword in Explorer, so need to update plugin setting in the UserData folder.
-                    // This kind of plugin meta update should be handled by a dedicated method trigger by version bump.
+                    // TODO: Remove. This is backwards compatibility for 1.8.0 release.
+                    // Introduced two new action keywords in Explorer, so need to update plugin setting in the UserData folder.
                     if (metadata.ID == "572be03c74c642baae319fc283e561a8" && metadata.ActionKeywords.Count != settings.ActionKeywords.Count)
-                        settings.ActionKeywords = metadata.ActionKeywords;
+                    {
+                        settings.ActionKeywords.Add(Query.GlobalPluginWildcardSign); // for index search
+                        settings.ActionKeywords.Add(Query.GlobalPluginWildcardSign); // for path search
+                    }
 
                     if (string.IsNullOrEmpty(settings.Version))
                         settings.Version = metadata.Version;