[Windows] Evaluate creating custom logic for GUEST username

[arixmkii]

Description

Windows username returned often is made of multiple parts (includes domain name), which prevents it from being used as a username in Unix environment.

This is a followup to #3378 (comment)

The idea is to evaluate at least major common cases:

• local user
• MS account user
• Active Directory user

If there be an opportunity to evaluate some other Domain controller integration it should be considered as a plus.

This has low prio and no urgency as the machines are functional with a fallback user, this is a task to evaluate if it is reasonable to improve UX to make it closer to one on other platforms.

[arixmkii]

Throwing in a random idea. It might be worth to evaluate creation of Env var "LIMA_GUEST_USERNAME_OVERRIDE" to allow user manually override desired user name in the provisioned VM. May be it was already considered at some point and was already rejected, but it could be reconsidered in the scope of Windows perspective.