fix: support ZWJ emoji sequences in MessageEmoji components

[Vansh5632]

Summary

This PR adds support for ZWJ (Zero Width Joiner) emoji sequences in the MessageEmoji and MessageEmojiBase components. These changes ensure that complex emojis, such as family emojis, are correctly rendered.

Changes

• Updated MessageEmojiBase to detect and handle ZWJ sequences.
• Ensured that the MessageEmoji component correctly passes props and classNames for these sequences.

Testing

• Manually tested ZWJ emojis in messages to ensure correct rendering.
• Ran existing test suites to confirm no regressions.

Related Issues

Closes #<issue_number> (if applicable)

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Latest commit: 2404349

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