refactor: remove unused props from components and improve error handling in about page (#385)

src/components/misc/License.astro

@@ -12,7 +12,7 @@ interface Props {
   class: string
 }
 
-const { title, slug, pubDate } = Astro.props
+const { title, pubDate } = Astro.props
 const className = Astro.props.class
 const profileConf = profileConfig
 const licenseConf = licenseConfig