Update nested tensor + MHA tutorial to include SDPA + torch.compile

[jbschlosser]

Stack from ghstack (oldest at bottom):

• -> Update nested tensor + MHA tutorial to include SDPA + torch.compile #2812

TODO:

• Link to more thorough comparison of strided / jagged NTs
• Update part before MHA to focus on jagged?

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/tutorials/2812

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✅ You can merge normally! (1 Unrelated Failure)

As of commit 4414dbb with merge base 2ad3512 ():

BROKEN TRUNK - The following job failed but were present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• Build tutorials / pytorch_tutorial_build_worker (1, 15, linux.16xlarge.nvidia.gpu) (gh)
  File was unable to be removed Error: EACCES: permission denied, unlink '/home/ec2-user/actions-runner/_work/tutorials/tutorials/.jenkins/__pycache__/get_files_to_run.cpython-310.pyc'

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[svekars]

@jbschlosser thank you for this PR. Can you please resubmit w/o using gh-stack? This repo does not support it.

[jbschlosser]

@svekars thanks for the heads up :) closing this one in favor of #2813