Hydration node mismatch when use md-editor with attr: language="en-US"

[james-wangx]

Describe the bug
Hydration node mismatch when use md-editor with attr: language="en-US"

To Reproduce
Steps to reproduce the behavior:
use attr language="en-US" in md-editor

<md-editor v-model="comment.content"
           :preview="false"
           editor-id="comment"
           language="en-US"
           show-code-row-number
           style="height: 200px"
/>

Expected behavior
No error, Hydrate success.

Screenshots

Desktop:

• Browser Chrome
• Version 0.0.1