feat(useDateFormat): support meridiem format

[huynl-96]

Description

• In the REGEX_FORMAT, we've already supported a|A regex for meridiem but there is no logic to handle this yet.
• Support format with periods, such as a.m., p.m.
• Customizable meridiem for other locales

Additional context

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What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

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• Read the Contributing Guidelines.
• Read the Pull Request Guidelines.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Ideally, include relevant tests that fail without this PR but pass with it.

[huynl-96]

@webfansplz Could you help me review this PR when you're available? Thanks