{Core} Skip positional arguments for failure recommendations

[houk-ms]

Description

Fix issue #15465，#15591

This PR fixes the positional arguments parsing issue in failure recommendations. The original logic ignored the positional arguments, which would make CLI crash when running a command with positional arguments if that command failed.

Testing Guide

Previously, CLI will crash when running az acr build

...
azure/cli/core/command_recommender.py, ln 162, in recommend_a_command
    normalized_parameters = self._normalize_parameters(parameters)
azure/cli/core/command_recommender.py, ln 244, in _normalize_parameters
    standard_form = sorted_options[0]
IndexError: list index out of range

Now, it prints the right error messages

RequiredArgumentMissingError: the following arguments are required: --registry/-r, <SOURCE_LOCATION>
Try this: 'az acr build -r MyRegistry .'
Still stuck? Run 'az acr build --help' to view all commands or go to 'https://docs.microsoft.com/en-us/cli/azure/reference-index?view=azure-cli-latest' to learn more

[houk-ms]

@christopher-o-toole The original logic in failure recommendation seems to not consider the positional arguments. Do you have any plans to use them in Aladdin Service?