Finished converter plugin

src/HopFrame.Web/Services/IFileService.cs

@@ -0,0 +1,11 @@
+using Microsoft.AspNetCore.Components.Forms;
+
+namespace HopFrame.Web.Services;
+
+public interface IFileService {
+
+    public Task DownloadFile(string name, byte[] data);
+
+    public Task<IBrowserFile> UploadFile();
+
+}