Merge pull request Flow-Launcher#3999 from Flow-Launcher/portable_mode_fix

Fix PortableMode Check Issue

Author: Jack251970

Flow.Launcher.Infrastructure/UserSettings/DataLocation.cs

@@ -7,8 +7,8 @@ public static class DataLocation
     {
         public const string PortableFolderName = "UserData";
         public const string DeletionIndicatorFile = ".dead";
-        public static string PortableDataPath = Path.Combine(Constant.ProgramDirectory, PortableFolderName);
-        public static string RoamingDataPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "FlowLauncher");
+        public static readonly string PortableDataPath = Path.Combine(Constant.ProgramDirectory, PortableFolderName);
+        public static readonly string RoamingDataPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "FlowLauncher");
         public static string DataDirectory()
         {
             if (PortableDataLocationInUse())
@@ -19,7 +19,8 @@ public static string DataDirectory()
 
         public static bool PortableDataLocationInUse()
         {
-            if (Directory.Exists(PortableDataPath) && !File.Exists(DeletionIndicatorFile))
+            if (Directory.Exists(PortableDataPath) &&
+                !File.Exists(Path.Combine(PortableDataPath, DeletionIndicatorFile)))
                 return true;
 
             return false;