Lists bulleted with `•` are not rendered in preview correctly

Just for reference:
- There's a same [issue](https://github.com/Automattic/simplenote-macos/issues/939) for Simplenote macOS native.
- Support of `•` lists for Simplenote Android was added with #871, and it looks like such lists were rendered correctly at the time of testing.

### Expected
If `•` is treated as a list bullet during edit, the list should be rendered correctly in preview.

### Observed
A list bulleted with `•` is placed on a single line in preview:

https://user-images.githubusercontent.com/73365754/131517068-f39e0651-b0e9-466b-bd50-2fe796af0e62.mp4

### Reproduced
1. Open a new note
2. Enable markdown
3. Start creating a list, and use `•` as a bullet
4. Make sure list is looking good in editor
5. Switch to preview ~> list is a one-liner

Device Model: **Samsung Galaxy A31**
Android Version: **10**
Simplenote Version: **2.20-rc-1**

Start by reproducing the issue in the Android app using the listed steps on a markdown note, then inspect the editor-to-preview handling for lists using the `•` bullet. Done means a list that looks correct in the editor is rendered as separate list items rather than a single line in preview.

Written by the indexing model from the issue text.