Background: This is related to T255224: Wikisource Export: Translate WSExport web interface. Wikisource Export uses an on-wiki page (e.g. on Italian Wikisource) to store the few bits of text that it includes in exported ebooks. This page is a the INI format, although its content type is wikitext. We could change it to be a JSON page, so editors can benefit from not being allowed to save invalid syntax. A more robust solution is to move these into the application and having them translated on TranslateWiki (the advantage of having them on-wiki is that then all the content that ends up in the ebook comes from the same wiki and so can be worked on by the same community, but there are only four strings and only one is of any complexity).
The format looks like this:
title_page = "Title page" cover = "Cover" exported_from_wikisource_the = "Exported from Wikisource on %d" about = "About"
Acceptance Criteria:
- Move translation messages (as described in background above)
- Delete the pages on the wikis that have them
- Update documentation on the wikis
- Make sure that this work is compatible with font work (as done in T261479)