fix(tests): fix erroneous filenames, missing items, and demo item

frontend/static/surveys/items/1016/1.jpeg

frontend/static/surveys/items/1017/1.jpeg

frontend/static/surveys/items/1018/1.jpeg

frontend/static/surveys/items/1019/1.jpeg

frontend/static/surveys/items/1020/1.jpeg

frontend/static/surveys/items/1021/1.jpeg

frontend/static/surveys/items/1022/1.jpeg

frontend/static/surveys/items/1023/1.jpeg

frontend/static/surveys/items/1024/1.jpeg

frontend/static/surveys/items/1025/1.jpeg

frontend/static/surveys/items/1026/1.jpeg

frontend/static/surveys/items/1027/1.jpeg

frontend/static/surveys/items/1028/1.jpeg

frontend/static/surveys/items/1029/1.jpeg

frontend/static/surveys/items/1030/1.jpeg

frontend/static/surveys/items/1090/1.jpeg

frontend/static/surveys/items/1090/2.jpeg

frontend/static/surveys/items/1090/3.jpeg

scripts/surveys/groups.csv

scripts/surveys/items.csv