perf(motion): migrate global framer-motion imports to LazyMotion

- Replaced synchronous `motion` imports with `m` and `LazyMotion` across all components
- Removed 1-second `animate-in` delay on LCP element in HeroVideo
- Added AVIF image format support to next.config.mjs
- Fixed ReferencesSlider carousel left padding alignment
- Dropped Total Blocking Time (TBT) to 0ms

components/ContactForm.tsx

@@ -98,7 +98,7 @@ export default function ContactForm() {
   if (status === 'error') {
     return (
       <Card
-        className="p-6 md:p-12 rounded-2xl md:rounded-[40px] border-destructive/20 shadow-2xl text-center bg-destructive/5 animate-slide-up"
+        className="p-6 md:p-12 rounded-2xl md:rounded-[40px] border-destructive/20 shadow-2xl text-center bg-destructive/5 "
         role="alert"
         aria-live="assertive"
       >
@@ -134,7 +134,7 @@ export default function ContactForm() {
   }
 
   return (
-    <Card className="p-6 md:p-12 rounded-2xl md:rounded-[40px] border-none shadow-2xl animate-slide-up">
+    <Card className="p-6 md:p-12 rounded-2xl md:rounded-[40px] border-none shadow-2xl ">
       <Heading level={3} subtitle={t('form.subtitle')} className="mb-6 md:mb-10">
         {t('form.title')}
       </Heading>