Social app

Create a social media web app where users can:
- Sign up and log in with username, email, and password
- Create and edit their profile with profile picture and bio
- Post text, images, songs, and videos
- Like, comment, and share posts
- Have a home feed showing posts from all users
- Add a section for advertisements
- Mobile friendly UI with modern design

Make it using HTML, CSS, JavaScript, and a simple backend (Node.js + Exprepublic ← CSS/JS, uploaded thumbnails
/views ← EJS p