Fixed the file filters of the native file dialog for nested file types (#1079)

app/MindWork AI Studio/Tools/Services/FileEnumerationResult.cs

@@ -77,7 +77,7 @@ public sealed class FileEnumerationResult
             return extension;
 
         var fileName = Path.GetFileName(filePath);
-        return FileTypes.SOURCE_LIKE_FILE_NAMES.FilterExtensions
+        return FileTypes.SOURCE_LIKE_FILE_NAMES.FileNames
             .FirstOrDefault(knownFileName => string.Equals(knownFileName, fileName, StringComparison.OrdinalIgnoreCase))
             ?? string.Empty;
     }

app/MindWork AI Studio/Tools/Services/RustService.FileSystem.cs

@@ -58,7 +58,7 @@ public sealed partial class RustService
                 {
                     Title = title,
                     PreviousFile = initialFile is null ? null : new (initialFile),
-                    Filter = FileTypes.AsOneFileType(filter)
+                    Filter = FileTypes.ToFileDialogFilter(filter)
                 };
 
                 var result = await this.http.PostAsJsonAsync("/select/file", payload, this.jsonRustSerializerOptions);
@@ -81,7 +81,7 @@ public sealed partial class RustService
                 {
                     Title = title,
                     PreviousFile = initialFile is null ? null : new (initialFile),
-                    Filter = FileTypes.AsOneFileType(filter)
+                    Filter = FileTypes.ToFileDialogFilter(filter)
                 };
 
                 var result = await this.http.PostAsJsonAsync("/select/files", payload, this.jsonRustSerializerOptions);
@@ -112,7 +112,7 @@ public sealed partial class RustService
                 {
                     Title = title,
                     PreviousFile = initialFile is null ? null : new (initialFile),
-                    Filter = FileTypes.AsOneFileType(filter)
+                    Filter = FileTypes.ToFileDialogFilter(filter)
                 };
 
                 var result = await this.http.PostAsJsonAsync("/save/file", payload, this.jsonRustSerializerOptions);