Input Chinese character after EmbedBlot, cursor positioning error

[ahauzq]

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Steps for Reproduction

1. Visit https://codepen.io/ahauzq/pen/dyEYadv
2. click after "text" block
3. switch to chinese IME
4. input some Chinese

Expected behavior: The cursor appears after the input text

Actual behavior: The cursor appears after the EmbedBlot, and before the input text

Platforms: browser: chrome 124.0.6367.207 os: macOS 14.4.1

Include browser, operating system and respective versions

Version: 2.0.2

https://github.com/quilljs/quill/assets/30280271/41285855-d72a-4050-8bc5-0781ab58d36f

[ahauzq]

https://github.com/quilljs/quill/issues/2970

[ahauzq]

https://github.com/quilljs/quill/pull/2973/commits/e56603e52f7f3f8fe7295fba1020ca226ef9a5e0

[jimmygan]

This issue has not been fixed yet. @ahauzq

[jimmygan]

When there are consecutive EmbedBlots, the cursor is also incorrect when deleting them. e.g. @a@b@c

[pmachapman]

This bug occurs for me on Quill 2.0.3 with Korean characters entered via the IME.