fix(type): fix deprecated type error (#102)

fix ts error #100 

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **Bug Fixes**
- Improved the display of deprecated items by ensuring that the visual
indicator (e.g., strikethrough) is applied consistently for a clearer
user experience.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: innocces

src/slugs/versions/index.tsx

@@ -154,7 +154,7 @@ function VersionsList({ versions, pkg }: { versions: NpmPackageVersion[]; pkg: P
 
             return (
               <li className={styles.versionsItem} key={item.version}>
-                <Typography.Text delete={item.deprecated}>
+                <Typography.Text delete={!!item.deprecated}>
                   <Link
                     prefetch={false}
                     title={item.deprecated}