As a Watchlist Expiry user, I want the temporary watch period selection to be translated into my wiki language, so that I can properly use and understand the tool in my language of choice.
**Background:** As a non-English speaking watchlist expiry user, after selecting a temporary expiry via the pop-up, the success message should display the expiry time in my chosen language, so I know I have made the correct selection. This will become more noticable after T258662 is fixed.
**Steps to reproduce problem:
**1. Go to https://en.wikipedia.beta.wmflabs.org/wiki/Math_test?uselang=de
2. Click the watch star
3. Click the expiry dropdown to open it, but then use your keyboard down arrow to select "1 Woche" and press enter
**Expected behavior:** Message above the expiry dropdown says: `„Math test“ und die Diskussionsseite wurden für 1 woche zu deiner Beobachtungsliste hinzugefügt.`
**Observed behavior:** Message says: `„Math test“ und die Diskussionsseite wurden für 1 week zu deiner Beobachtungsliste hinzugefügt.`
**Environment - Wiki(s):** https://en.wikipedia.beta.wmflabs.org MediaWiki 1.36.0-alpha (50f3cc2) 2020-07-28T06:23:42
**Acceptance Criteria:**
* Fix bug that displays "week" instead of "woche" in the example described above
Screenshots (if applicable):
{F31951001}