**Motivation**
At the wikis that use Extension:Translate, it would be great to teach people that we can limit the search results to a specific language using the `inlanguage:foo` parameter. E.g.
https://meta.wikimedia.org/w/index.php?search="Meta+serves+three+distinct+roles"+inlanguage%3Aen
https://meta.wikimedia.org/w/index.php?search="Meta+serves+three+distinct+roles"
because it is often very hard to find a string of text when it appears in hundreds of translated/semi-translated pages.
**Mock**
Please use the location and label as indicated in the mock
F13798268
**Info i texts**
TO COME
**Acceptance Criteria**
[] If the wiki does not support the translate extension, the field/label is not visible
[] If the wiki supports the translate extension, there is a field with label as indicated in the mock
[] The field uses the same input method as file type
[] The list contains the languages as in https://de.wikipedia.org/wiki/Spezial:Einstellungen --> Internationalisation/Languages
[] The default of the field is "Choose language", which can also be selected from the list. If "Choose language" is selected, this keyword is ignored
[] Searching with this field reduces the search results to only this language (i.e. we use the inlanguage keyword correctly)