Tech:Translating Miraheze extensions

Miraheze develops and maintains a few extensions, for example cw>github:miraheze/CreateWiki|CreateWiki and mw>github:miraheze/ManageWiki|ManageWiki. As Miraheze has users with no or limited knowledge of English, internationalization is important for users.

Currently, we use twn>translatewiki:|translatewiki.net for CreateWiki and ManageWiki translations.

TranslateWiki process
They are then deployed to the Miraheze cluster (the submodule must be updated)
 * 1) Add strings on en.json
 * 2) Translatewiki.net bot will pull the code when they import the strings, and it will be shown to translators for translate
 * 3) Translators in Translatewiki.net translate the texts
 * 4) Translatewiki.net bot will push the $lang.json when the export bot is run