Update to latest emoji-datasource

[savardc]

Emoji 4 support through latest version of emoji-data

I switched the default sheetSize to 32px since the 64px is not part of the main package anymore

[EtienneLem]

Been following and wanting to upgrade emoji-data for a while, but using the 32px file as the default will most likely make the emojis blurry.

That being said, we could still have the updated emoji-datasource as a dependency, but link to the right sub-package at https://github.com/missive/emoji-mart/blob/master/src/components/emoji.js#L129

What do you think?

[savardc]

I reverted the default sheetSize since the local version of emoji-datasource is not use for images (unless you have a backgroundImageFn)

[samkelleher]

This looks good to be merged? Seperatly I have a fork in which I am working on splitting out the emoji-data from this lib so it can be 'injected' rather than bundled. This is useful for me since my application uses the emoji-data lib elsewhere and don't want to bundle it twice.

[EtienneLem]

Looks good to me! Thanks 🤘