Removing dinov3 model output class to facilitate jit compilation

[coder0143]

Resolves #104

Reference

A small change to modeling.py and test_outputs_dinov3.py to add jit compilation (removing output dataclass and using a dictionary for output instead), I will update the colab notebook as well.

Checklist

• I have read the Contribution Guidelines and used pre-commit hooks to format this commit.
• I have added all the necessary unit tests for my change. (run_model.py for model usage, test_outputs.py and/or model_validation_colab.ipynb for quality).
• (If using an LLM) I have carefully reviewed and removed all superfluous comments or unneeded, commented-out code. Only necessary and functional code remains.
• I have signed the Contributor License Agreement (CLA).

[coder0143]

Can anyone update the changes @jenriver @chapman20j