Missing French "œuf" => "oeuf" (O+E ligature)

[danielweck]

References:

https://en.wikipedia.org/wiki/%C5%92

https://en.wiktionary.org/wiki/%C5%93uf

Mappings:

https://github.com/diacritics/database/blob/dist/v1/diacritics.json

[danielweck]

I noticed it is also missing from https://github.com/sindresorhus/transliterate/blob/master/replacements.js

[julkue]

Thanks for submitting. A PR is highly appreciated.

[danielweck]

Just to let you know (so you can make decisions in your bug triage): I have neither the time nor the expertise (domain knowledge) to contribute at the moment.
I just wanted to point out the missing piece :)