https://learn.microsoft.com/en-us/aspnet/core/blazor/call-web-api?view=aspnetcore-8.0#antiforgery-support https://andrewlock.net/exploring-the-dotnet-8-preview-form-binding-in-minimal-apis/#must-set-multipart-form-data-if-sending-files https://code-maze.com/aspnetcore-multipart-form-data-in-httpclient/
UploadFiles component in UploadProject.Web makes it able to upload files to UploadAssistantApi in ApiService.