Use api functions instead

Author: Jack251970

Flow.Launcher.Core/Configuration/Portable.cs

@@ -48,7 +48,7 @@ public void DisablePortableMode()
                 API.ShowMsgBox("Flow Launcher needs to restart to finish disabling portable mode, " +
                     "after the restart your portable data profile will be deleted and roaming data profile kept");
 
-                UpdateManager.RestartApp(Constant.ApplicationFileName);
+                API.RestartApp();
             }
             catch (Exception e)
             {
@@ -72,7 +72,7 @@ public void EnablePortableMode()
                 API.ShowMsgBox("Flow Launcher needs to restart to finish enabling portable mode, " +
                     "after the restart your roaming data profile will be deleted and portable data profile kept");
 
-                UpdateManager.RestartApp(Constant.ApplicationFileName);
+                API.RestartApp();
             }
             catch (Exception e)
             {

Flow.Launcher.Core/Updater.cs

@@ -1,19 +1,19 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Net;
 using System.Net.Http;
 using System.Net.Sockets;
-using System.Linq;
 using System.Text.Json;
 using System.Text.Json.Serialization;
 using System.Threading;
 using System.Threading.Tasks;
 using System.Windows;
-using Flow.Launcher.Plugin.SharedCommands;
 using Flow.Launcher.Infrastructure;
 using Flow.Launcher.Infrastructure.Http;
 using Flow.Launcher.Infrastructure.UserSettings;
 using Flow.Launcher.Plugin;
+using Flow.Launcher.Plugin.SharedCommands;
 using JetBrains.Annotations;
 using Squirrel;
 
@@ -89,7 +89,7 @@ public async Task UpdateAppAsync(bool silentUpdate = true)
 
                 if (_api.ShowMsgBox(newVersionTips, _api.GetTranslation("update_flowlauncher_new_update"), MessageBoxButton.YesNo) == MessageBoxResult.Yes)
                 {
-                    UpdateManager.RestartApp(Constant.ApplicationFileName);
+                    _api.RestartApp();
                 }
             }
             catch (Exception e)