Mamba / FalconMamba: Fix mamba left padding (#32677)
* fix mamba left padding
* Apply suggestions from code review
Co-authored-by: Pablo Montalvo <39954772+molbap@users.noreply.github.com>
* fix copies
* test with `inputs_embeds`
* Update src/transformers/models/falcon_mamba/modeling_falcon_mamba.py
Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>
* copies
* clairfy
* fix last comments
* remove
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Co-authored-by: Pablo Montalvo <39954772+molbap@users.noreply.github.com>
Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>
