Static extraction of i18n strings

[jeanregisser]

In order to improve the developer experience for hooks author, we'd like to statically extract i18n strings from the code base.

There are several tools which can do this with i18next:

static extraction tools can read through your code files to automatically find and export translation keys. i18next-scanner, i18next-parser and babel-plugin-i18next-extract are sensible choices to achieve this goal.

https://www.i18next.com/how-to/extracting-translations

It would be nice to have a GitHub workflow check that ensure the latest strings have been extracted.
The workflow could also directly run the extraction if the PR author forgot to do it.

[Valortin]

@jeanregisser Please I would love to get assigned to this