replace image with thumbnail

tvdb.py

@@ -139,7 +139,7 @@ async def fetch_and_cache_json(original_title, title, media_type, year=None):
             if cleaned_data['data'].get('artworks'):
                 for artwork in cleaned_data['data']['artworks']:
                     if artwork['type'] in [15, 3]:
-                        image_link = artwork.get('image')
+                        image_link = artwork.get('thumbnail')
                         break
             print(f"Image link extracted: {image_link}")