Blockquotes and code blocks in lists don't get rendered properly

This doesn't get rendered correctly in djot-php:

```
List:

- > *author*:
  >
  > Line 1 \
  > Line 2

- Another item
```

````
List:

- ```
  asdasdasd
  asasdasd
  ```

- Another item
````

Numbered lists also don't work well with quotes / code blocks.