Translate the whole site to English: English routes with 301 redirects from the Dutch paths, English UI, docs, seeds and captions, one-time live content migration

tests/api/posts.py

@@ -2,8 +2,8 @@
 
 
 def test_post_page(anon):
-    posts = anon.get("/rol", headers={"Accept": "application/json"}).json()["posts"]
-    post = next(post for post in posts if post["title"] == "Geen cursus.")
+    posts = anon.get("/roll", headers={"Accept": "application/json"}).json()["posts"]
+    post = next(post for post in posts if post["title"] == "No course.")
     response = anon.get(f"/posts/{post['slug']}")
     assert response.status_code == 200
     assert "Placeholder" in response.text