Fix async task issue

Author: Jack251970

Flow.Launcher.Core/Plugin/PluginManager.cs

@@ -469,10 +469,10 @@ public static bool PluginModified(string uuid)
         /// Update a plugin to new version, from a zip file. By default will remove the zip file if update is via url,
         /// unless it's a local path installation
         /// </summary>
-        public static void UpdatePlugin(PluginMetadata existingVersion, UserPlugin newVersion, string zipFilePath)
+        public static async Task UpdatePluginAsync(PluginMetadata existingVersion, UserPlugin newVersion, string zipFilePath)
         {
             InstallPlugin(newVersion, zipFilePath, checkModified:false);
-            UninstallPlugin(existingVersion, removePluginFromSettings:false, removePluginSettings:false, checkModified: false);
+            await UninstallPluginAsync(existingVersion, removePluginFromSettings:false, removePluginSettings:false, checkModified: false);
             _modifiedPlugins.Add(existingVersion.ID);
         }
 
@@ -487,9 +487,9 @@ public static void InstallPlugin(UserPlugin plugin, string zipFilePath)
         /// <summary>
         /// Uninstall a plugin.
         /// </summary>
-        public static void UninstallPlugin(PluginMetadata plugin, bool removePluginFromSettings = true, bool removePluginSettings = false)
+        public static async Task UninstallPluginAsync(PluginMetadata plugin, bool removePluginFromSettings = true, bool removePluginSettings = false)
         {
-            UninstallPlugin(plugin, removePluginFromSettings, removePluginSettings, true);
+            await UninstallPluginAsync(plugin, removePluginFromSettings, removePluginSettings, true);
         }
 
         #endregion
@@ -570,7 +570,7 @@ internal static void InstallPlugin(UserPlugin plugin, string zipFilePath, bool c
             }
         }
 
-        internal static async void UninstallPlugin(PluginMetadata plugin, bool removePluginFromSettings, bool removePluginSettings, bool checkModified)
+        internal static async Task UninstallPluginAsync(PluginMetadata plugin, bool removePluginFromSettings, bool removePluginSettings, bool checkModified)
         {
             if (checkModified && PluginModified(plugin.ID))
             {

Plugins/Flow.Launcher.Plugin.PluginsManager/PluginsManager.cs

@@ -341,7 +341,7 @@ await DownloadFileAsync(
                                 }
                                 else
                                 {
-                                    PluginManager.UpdatePlugin(x.PluginExistingMetadata, x.PluginNewUserPlugin,
+                                    await PluginManager.UpdatePluginAsync(x.PluginExistingMetadata, x.PluginNewUserPlugin,
                                         downloadToFilePath);
 
                                     if (Settings.AutoRestartAfterChanging)
@@ -433,7 +433,7 @@ await DownloadFileAsync(
                                 if (cts.IsCancellationRequested)
                                     return;
                                 else
-                                    PluginManager.UpdatePlugin(plugin.PluginExistingMetadata, plugin.PluginNewUserPlugin,
+                                    await PluginManager.UpdatePluginAsync(plugin.PluginExistingMetadata, plugin.PluginNewUserPlugin,
                                         downloadToFilePath);
                             }
                             catch (Exception ex)
@@ -681,7 +681,7 @@ internal List<Result> RequestUninstall(string search)
                         Title = $"{x.Metadata.Name} by {x.Metadata.Author}",
                         SubTitle = x.Metadata.Description,
                         IcoPath = x.Metadata.IcoPath,
-                        Action = e =>
+                        AsyncAction = async e =>
                         {
                             string message;
                             if (Settings.AutoRestartAfterChanging)
@@ -704,7 +704,7 @@ internal List<Result> RequestUninstall(string search)
                                     MessageBoxButton.YesNo) == MessageBoxResult.Yes)
                             {
                                 Context.API.HideMainWindow();
-                                Uninstall(x.Metadata);
+                                await UninstallAsync(x.Metadata);
                                 if (Settings.AutoRestartAfterChanging)
                                 {
                                     Context.API.RestartApp();
@@ -729,15 +729,15 @@ internal List<Result> RequestUninstall(string search)
             return Search(results, search);
         }
 
-        private void Uninstall(PluginMetadata plugin)
+        private async Task UninstallAsync(PluginMetadata plugin)
         {
             try
             {
                 var removePluginSettings = Context.API.ShowMsgBox(
                     Context.API.GetTranslation("plugin_pluginsmanager_keep_plugin_settings_subtitle"),
                     Context.API.GetTranslation("plugin_pluginsmanager_keep_plugin_settings_title"),
                     button: MessageBoxButton.YesNo) == MessageBoxResult.No;
-                PluginManager.UninstallPlugin(plugin, removePluginFromSettings: true, removePluginSettings: removePluginSettings);
+                await PluginManager.UninstallPluginAsync(plugin, removePluginFromSettings: true, removePluginSettings: removePluginSettings);
             }
             catch (ArgumentException e)
             {