[NO MERGE] [WIP] Add wrapper estimator guide

[TsafrirA]

Summary

Fixes #3193

AI/LLM disclosure

• I used the following tool to generate or modify code: IBM BOB

[SamFerracin]

Thanks, Tsafrir, looks great! I added some preliminary comments

[SamFerracin]

I'd remove this, since this page needs to get the prospective user excited 😄

Suggested change

	greater user control, at the cost of local compute during the preparation phase.
	greater user control.

[SamFerracin]

Some improvements:

Suggested change

	The end-to-end processing pipeline is:
	1. :meth:`~.EstimatorV2.run` coerces PUBs, calls :meth:`~.EstimatorV2.finalize_options` to
	resolve resilience-level defaults, and determines the shot count.
	2. The ``prepare()`` pipeline converts the PUBs into a
	When a user runs a job via :meth:`~.EstimatorV2.run`, the end-to-end processing pipeline is as follows:
	1. First, some preliminary operations: The PUBs are coerced, the resilience-level defaults are resolved via :meth:`~.EstimatorV2.finalize_options`, and the shot count is determined.
	2. Then, the ``prepare`` method converts the PUBs into a

[SamFerracin]

This part is already documented on the class itself, I'd avoid duplication

Suggested change

	Constructor
	-----------
	* **mode** (:class:`~qiskit.providers.BackendV2` | :class:`~qiskit_ibm_runtime.Session` |
	:class:`~qiskit_ibm_runtime.Batch` | ``None``) —
	The execution mode. Use a :class:`~qiskit.providers.BackendV2` for job mode, a
	:class:`~qiskit_ibm_runtime.Session` for session mode, or a
	:class:`~qiskit_ibm_runtime.Batch` for batch mode. Refer to the
	`IBM Quantum Compute documentation <https://quantum.cloud.ibm.com/docs/guides/execution-modes>`_
	for guidance on choosing an execution mode.
	* **options** (:class:`~.EstimatorOptions` | ``dict`` | ``None``) —
	Estimator options. If ``None``, a default :class:`~.EstimatorOptions` instance with
	``resilience_level=1`` is used. A plain ``dict`` is coerced to :class:`~.EstimatorOptions`.

[SamFerracin]

Same for this section. Everything here is already explained, except perhaps the part about broadcasting rules--but I would rather mention it, and link to the docs page, in the doctring of run rather than here