Can not input code in code block

[Ran Luo]

• Searched existing issues to avoid creating duplicates.

• Confirmed that it can be reproduced in muya.

---

Describe the bug
Enter the code in the code block and report an error

To Reproduce
Steps to reproduce the behavior:

1. Create a code block
2. Input code bellow

function add(a, b) {
    return a + b;
}

Expected behavior
Codes are display in codeblock corectlly.

Actual behavior

Error happened:

Index or size is negative or greater than the allowed amount
select@http://localhost:3000/main.bundle.js:63694:15
setCursor@http://localhost:3000/main.bundle.js:63794:14
setSelection@http://localhost:3000/main.bundle.js:63671:14
setCursor@http://localhost:3000/main.bundle.js:55642:24
inputHandler@http://localhost:3000/main.bundle.js:3188:12
eventHandler@http://localhost:3000/main.bundle.js:6160:25

Operation System and Browser version (please complete the following information):

• OS: [e.g. macOS 13.5 (22G74)]
• Browser: firefox

Muya Version
e.g: 0.10.11