feat: Allow for info window customization on advanced markers

[pmecho]

This follows the approach used by regular markers which has separate functions for customizing just the content and customizing the whole window. Currently there is no way to customize either.

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Fixes #822 🦕

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[kikoso]

Hi @pmecho . I know this is still in draft, but could you modify the PR title to follow the conventional commits convention? Probably something like:

feat: allow for info window customization on advanced markers