feat(Style): add animations and effects to landing page

added:

- float like group
- button hover effect
- link hover glow effect
- component zoom effect

src/components/Card.astro

@@ -1,10 +1,13 @@
 ---
 export interface Props {
   title?: string;
+  className?: string;
 }
+
+const { className } = Astro.props;
 ---
 
-<div class="card vstack">
+<div class:list={['card', 'vstack', className]}>
   <div class="title">
     <slot name="title" />
   </div>