style: format code with Prettier and StandardJS

[deepsource-autofix]

This commit fixes the style issues introduced in 216beed according to the output
from Prettier and StandardJS.

Details: None

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
pro-react-admin	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Aug 2, 2025 9:47am

[what-the-diff]

PR摘要

• 改变了OrgChart组件中的自闭合div语法
  • 用<div className={styles.verticalLineDown} />替换了<div className={styles.verticalLineDown}></div>
  • 用<div className={styles.horizontalLine} />替换了<div className={styles.horizontalLine}></div>
  • 用<div className={styles.verticalLineUp} />替换了<div className={styles.verticalLineUp}></div>

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud