Encoder should respect hardBreaks at the end of list items

[Emma Nickel]

The library encoder ‘zaps’ away a hardBreak if it is at the end of a list item, whereas the CS encoder respects it. For consistency, we think the behaviours should match.

ADF Request:

{
  "version": 1,
  "type": "doc",
  "content": [
    {
      "type": "bulletList",
      "content": [
        {
          "type": "listItem",
          "content": [
            {
              "type": "paragraph",
              "content": [
                {
                  "type": "text",
                  "text": "List item 1"
                }
              ]
            }
          ]
        },
        {
          "type": "listItem",
          "content": [
            {
              "type": "paragraph",
              "content": [
                {
                  "type": "text",
                  "text": "List item 2 (with hard break)"
                },
                {
                  "type": "hardBreak"
                }
              ]
            }
          ]
        },
        {
          "type": "listItem",
          "content": [
            {
              "type": "paragraph",
              "content": [
                {
                  "type": "text",
                  "text": "List item 3"
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}

CS:

* List item 1
* List item 2 (with hard break)

* List item 3

Lib:

* List item 1
* List item 2 (with hard break)
* List item 3"

‌