== Background
We would like to flag potential issues on the pilot wikis for the desktop improvements project with the new language button. One way to do this would be to add a parameter that shows the language button across all wikis
== Acceptance criteria
[] explore adding a parameter that shows the language button across all wikis regardless of whether the A/B test is enabled
== Notes
* There's already a check for a query parameter in the `Vector\FeatureManagement\Requirements\LanguageInHeaderTreatmentRequirement::isMet()` method but it's dependent on a check for whether the A/B test is enabled. The former needs to be independent of the latter.
== QA
1) Go to https://en.wikipedia.beta.wmflabs.org/wiki/Dog?languageinheader=0
[] Verify that the language list shows up in the sidebar
2) Go to https://en.wikipedia.beta.wmflabs.org/wiki/Dog?languageinheader=1
[] Verify that the language list shows up in the content header (next to "Dog")
== QA Results - Beta
| **AC** | **Status** | **Details** |
| ----- | ----- | ----- |
| 1 | ✅ | T282543#7099728 |
| 2 | ✅ | T282543#7099728 |