refactor: major nitpicks

- refactor: change default import alias
- feat: add icons to breadcrumbs
- fix: add `site_name` og tag
- feat: hover on feedback for `Link`s and `TableofContentsHeadings`
- fix: add `external` to `SocialIcons`

src/components/Link.astro

@@ -1,23 +1,15 @@
 ---
-import { cn } from '@lib/utils'
+import { cn } from '@/lib/utils'
 
 type Props = {
   href: string
   external?: boolean
   class?: string
   underline?: boolean
-  'data-heading'?: string
   [key: string]: any
 }
 
-const {
-  href,
-  external,
-  class: className,
-  underline,
-  'data-heading': dataHeading,
-  ...rest
-} = Astro.props
+const { href, external, class: className, underline, ...rest } = Astro.props
 ---
 
 <a
@@ -25,10 +17,10 @@ const {
   target={external ? '_blank' : '_self'}
   class={cn(
     'inline-block transition-colors duration-300 ease-in-out',
-    underline && 'underline underline-offset-[3px]',
+    underline &&
+      'underline decoration-muted-foreground underline-offset-[3px] hover:decoration-foreground',
     className,
   )}
-  data-heading={dataHeading}
   {...rest}
 >
   <slot />