feat: add line numbers for code blocks

src/components/misc/Markdown.astro

@@ -61,10 +61,20 @@ const className = Astro.props.class;
       padding: 0.125rem 0.25rem
       border-radius: 0.25rem
       overflow: hidden
+      counter-reset: line
       &:before
         content: none
       &:after
         content: none
+      span.line
+        &:before
+          content: counter(line)
+          counter-increment: line
+          direction: rtl
+          display: inline-block
+          margin-right: 1rem
+          width: 1.375rem
+          color: rgba(255, 255, 255, 0.25)
     pre
       background: var(--codeblock-bg) !important
       border-radius: 0.75rem
@@ -127,7 +137,6 @@ const className = Astro.props.class;
 @layer components {
     .custom-md h1 {
         @apply text-3xl
-
     }
 }