fix(site): thinner border

Author: Swepool

site/src/layouts/AnimationLayout.astro

@@ -54,7 +54,7 @@ const slideTextAnimation = {
 <style lang="postcss" is:global>
     .header-grid {
         --outer-border: 8px;
-        --inner-border: 5px;
+        --inner-border: 2px;
         --header-height: 68px;
         height: calc(100vh - var(--header-height));
         min-height: 400px;