fix MetaCLIP 2 wrong link & wrong model names in the docstrings (#40565)
* fix MetaCLIP 2 wrong link & wrong model names in the documentation and docstrings
* ruff reformatted
* update files generated by modular
* update meta_clip2 to metaclip_2 to match the original
* _supports_flash_attn = False
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Co-authored-by: Yung-Sung Chuang <yungsung@meta.com>