feat(university): migrate university

backend/backend_app/patchs/migrate_university.py

+from backend_app.models.university import University
+from backend_app.models.campus import Campus
+
+campuses = Campus.objects.filter(is_main_campus=True).prefetch_related(
+    "university", "city"
+)
+
+
+for campus in campuses:
+    university = campus.university
+    university.main_campus_lat = campus.lat
+    university.main_campus_lon = campus.lon
+
+    city = campus.city
+    university.country = city.country
+    university.city = city.name
+
+    university.save()
+
+
+for university in University.objects.all():
+    assert university.city != "", "city failed"
+    assert university.main_campus_lat != 0, "failed campus lat"
+    assert university.main_campus_lon != 0, "failed campus lon"
+    # can't check as there are universities in France
+    # assert university.country.pk != "FR", "country failed"