Add information on how to turn off error mitigation / suppression

[jyu00]

URL, if applicable

https://docs.quantum.ibm.com/run/configure-error-mitigation

Describe the new content you are requesting.

Many researchers want total control over their experiments and don't want the primitives to transform their circuits. For EstimatorV2, one can just set resilience_level=0 and optimization_level=0. It is however not obvious how to do this for SamplerV2, since there is no resilience_level in SamplerV2.

We should have a few words in the docs on how to accomplish this. For SamplerV2, measurement twirling is enabled by default. So one needs to set options.twirling.enable_measure = False.

These defaults can change in the future, so we should decide whether to show code to turn them all off now, or update the docs if/when defaults change.

My first thought was to add this to the error mitigation page... but this applies to both error mitigation and suppression. Perhaps we can repurpose the compilation page to error suppression, since our compilation is just error suppression now (i.e. no layout and routing).

If this new content request is accepted, do you want to write the content?

I can help the team by providing enough information to write the material

[beckykd]

I like the idea of repurposing the compilation page for error mitigation, but we'll need signoff from @javabster on that. But as a temporary fix, I can add some words about disabling it.