Feature summary (what you would like to be able to do and where):
I would like to be able to translate non-wikitext pages, e.g. Scribunto modules, with the Translate extension. This should probably be behind some sort of configuration.
Use case(s) (list the steps that you performed to discover that problem, and describe the actual underlying problem which you want to solve. Do not describe only a solution):
A non-Wikimedia wiki that I am an administrator of, the FTB Wiki, makes heavy use of translated modules (particularly with navboxes). The recent change (T163254 + https://gerrit.wikimedia.org/r/718014) makes us unable to mark new modules for translation, breaking our current setup.
Benefits (why should this be implemented?):
This empowers individual wikis to make a decision about what content types should be allowed to be marked for translation on their wikis.