feat: Cloudinary image migration & preloader removal

- Migrated 25 images to Cloudinary CDN with auto format/quality optimization
- Removed preloader from all pages
- Added .gitignore for env, node_modules, and large image files

images/icon-clock.svg

@@ -0,0 +1,10 @@
+<svg width="24" height="25" viewBox="0 0 24 25" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g clip-path="url(#clip0_198_816)">
+<path d="M12 24.9844C18.6257 24.9844 24 19.6101 24 12.9844C24 6.35865 18.6257 0.984375 12 0.984375C5.37427 0.984375 0 6.35865 0 12.9844C0 19.6101 5.37427 24.9844 12 24.9844ZM11.1428 6.12724C11.1428 5.6558 11.5286 5.27007 12 5.27007C12.4714 5.27007 12.8572 5.6558 12.8572 6.12724V12.573L16.8215 15.7444C17.19 16.0401 17.25 16.5801 16.9543 16.9487C16.7871 17.1587 16.5386 17.2701 16.2857 17.2701C16.0971 17.2701 15.9085 17.21 15.75 17.0815L11.4643 13.653C11.2629 13.4901 11.1429 13.2458 11.1429 12.9844V6.12724H11.1428Z" fill="#FFB120"/>
+</g>
+<defs>
+<clipPath id="clip0_198_816">
+<rect width="24" height="24" fill="white" transform="translate(0 0.984375)"/>
+</clipPath>
+</defs>
+</svg>