[Feature] Dark theme support

[0x62]

Emoji Mart has added support for light and dark themes, exposed through the theme prop. Is it possible to get support for that here?

[serebrov]

Technically yes, it is possible, although it is also not complex to support this outside the component as it is easy to override the component CSS.

Related issues in emoji mart:

• Add dark mode missive/emoji-mart#293
• darkMode default behaviour missive/emoji-mart#404
• Theme prop isn't working missive/emoji-mart#454