fix: broken cover image - EN

Fix issue for cover image for english version

app.py

@@ -167,7 +167,7 @@ if __name__ == '__main__':
                                     gr.Markdown(
                                         '<div align="center">'
                                         f'<a><strong>{title}</strong></a>'
-                                        f'<img style="width:auto;height:300px;" src="{cover}">' if cover else ""
+                                        f'<img style="width:auto;height:300px;" src="{image_cover}">' if cover else ""
                                         '</div>'
                                     )
                                 with gr.Row():