Add a sharding-aware version of Muon to maxtext. - #4936
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This implementation reshards leaf tensors to enforce all-to-all collective operations when likely profitable to do so, generally using the layer stacking axis. PiperOrigin-RevId: 966768307
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Add a sharding-aware version of Muon to maxtext.
This implementation reshards leaf tensors to enforce all-to-all collective operations when likely profitable to do so, generally using the layer stacking axis.