feat: migrate im website to github pages

[techfg]

IMPORTANT

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• Have you read ImageMapster's Code of Conduct? By creating a Pull Request, you are expected to comply with it, including treating everyone with respect.
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What is this change for?

• Feature / enhancement - Any change should be discussed in the associated Issue before proceeding. Failure to do so may result in the rejection of the pull request.
• Bug
• Docs
• Tests

Description (required)

Migrate IM website from http://www.outsharked.com/imagemapster to github pages and address issues found during the migration (#418 & #422).

Test plan (required)

Very few code changes, only some related to addressing #418 & #422, ensuring that code that is no longer used/referenced is removed and code/comments align with documentation and vice-versa. All tests pass.

Closing issues

• Resolves [📘] Docs incorrectly state that highlighting will be disabled when staticState option is specified #138
• Resolves [📘] onClick event will not fire if clickNavigate is set to true #228
• Resolves [📘] Migrate website to github #322
• Resolves [📘] rebind docs are not correct regarding preserving selected state #382
• Resolves [🐞] configTimeout not respected for value specified #414
• Resolves [🐞] fadeDuration specified in area options is not honored for tooltips #418