Typo Update account_and_client.rst

[mdqst]

Description:
This pull request fixes a minor grammatical issue in the "Transaction Fee" section of the documentation. The original sentence:

"The fee for a specific transaction or list of transactions can be also estimated using the :meth:~starknet_py.net.account.account.Account.estimate_fee of the :ref:Account class."

contained incorrect word order in the phrase "can be also estimated."

The corrected sentence is:

"The fee for a specific transaction or list of transactions can also be estimated using the :meth:~starknet_py.net.account.account.Account.estimate_fee of the :ref:Account class."

Why is this change important?

• Clarity: Fixing the grammar improves the readability and professionalism of the documentation.
• Accuracy: Proper grammar helps users better understand the content without misinterpretation.

Thank you for maintaining such high-quality documentation!