CharlyKeleb/SocialMedia-App ? reverse-engineered prompt

Build me a social media app in Flutter that feels like a mix of Instagram and a simple chat app.

I want users to sign in with Firebase, set up a profile, change their username, profile photo, and bio, then start following other people. The main screen should show a photo feed where people can post from the camera or gallery, like posts, comment on them, view all comments, and delete their own posts. Add user search, a notifications screen for likes, comments, and new followers, and let notifications be swiped away.

Please also include real time messaging with image sharing, a stories or status section, and dark mode. Make the profile page switch between a grid view and a feed view. Keep the design clean and modern, and use state management so the app stays organized. If you need current Flutter or Firebase setup details, look them up online and follow the latest docs.