Return Marvel hero based on image with about 88% accuracy.

See https://www.kaggle.com/code/dima806/marvel-heroes-image-detection-vit for more details.

```
Classification report:

                 precision    recall  f1-score   support

captain america     0.8519    0.8519    0.8519       162
    black widow     0.8634    0.8528    0.8580       163
     spider-man     0.9571    0.9630    0.9600       162
         thanos     0.8917    0.8589    0.8750       163
        ironman     0.8614    0.8827    0.8720       162
           hulk     0.8889    0.8395    0.8635       162
           loki     0.8957    0.8957    0.8957       163
 doctor strange     0.8629    0.9264    0.8935       163

       accuracy                         0.8838      1300
      macro avg     0.8841    0.8838    0.8837      1300
   weighted avg     0.8841    0.8838    0.8837      1300
```
captain america black widow spider-man thanos ironman hulk loki doctor strange