Add MaxImageResolution config setting (#17941)

app/upload.go

@@ -265,7 +265,7 @@ func (a *App) UploadData(c *request.Context, us *model.UploadSession, rd io.Read
 
 	// image post-processing
 	if info.IsImage() {
-		if limitErr := checkImageResolutionLimit(info.Width, info.Height); limitErr != nil {
+		if limitErr := checkImageResolutionLimit(info.Width, info.Height, *a.Config().FileSettings.MaxImageResolution); limitErr != nil {
 			return nil, model.NewAppError("uploadData", "app.upload.upload_data.large_image.app_error",
 				map[string]interface{}{"Filename": us.Filename, "Width": info.Width, "Height": info.Height}, "", http.StatusBadRequest)
 		}