Fix storage save directory issue

Flow.Launcher.Infrastructure/Storage/BinaryStorage.cs

@@ -82,8 +82,10 @@ private static async ValueTask<T> DeserializeAsync(Stream stream, T defaultData)
 
         public void Save()
         {
-            var serialized = MemoryPackSerializer.Serialize(Data);
+            // User may delete the directory, so we need to check it
+            FilesFolders.ValidateDirectory(DirectoryPath);
 
+            var serialized = MemoryPackSerializer.Serialize(Data);
             File.WriteAllBytes(FilePath, serialized);
         }
 
@@ -103,6 +105,9 @@ public void ClearData()
         // so we need to pass it to SaveAsync
         public async ValueTask SaveAsync(T data)
         {
+            // User may delete the directory, so we need to check it
+            FilesFolders.ValidateDirectory(DirectoryPath);
+
             await using var stream = new FileStream(FilePath, FileMode.Create);
             await MemoryPackSerializer.SerializeAsync(stream, data);
         }

Flow.Launcher.Infrastructure/Storage/JsonStorage.cs

@@ -183,7 +183,10 @@ private void BackupOriginFile()
 
         public void Save()
         {
-            string serialized = JsonSerializer.Serialize(Data,
+            // User may delete the directory, so we need to check it
+            FilesFolders.ValidateDirectory(DirectoryPath);
+
+            var serialized = JsonSerializer.Serialize(Data,
                 new JsonSerializerOptions { WriteIndented = true });
 
             File.WriteAllText(TempFilePath, serialized);
@@ -193,6 +196,9 @@ public void Save()
 
         public async Task SaveAsync()
         {
+            // User may delete the directory, so we need to check it
+            FilesFolders.ValidateDirectory(DirectoryPath);
+
             await using var tempOutput = File.OpenWrite(TempFilePath);
             await JsonSerializer.SerializeAsync(tempOutput, Data,
                 new JsonSerializerOptions { WriteIndented = true });