- Added Tailwind CSS, PostCSS, and Autoprefixer to devDependencies in package.json.
- Created postcss.config.js for PostCSS configuration.
- Added index.css for Tailwind CSS directives and custom styles.
- Updated App.jsx to improve banner URL handling for user profiles.
- Modified main.jsx to include the new index.css for global styles.
- Created tailwind.config.js for Tailwind CSS configuration.

Codex-generated pull request

Use raw GitHub logo assets on login and polish UI/branding

Ermine branding refresh: UI copy, colors, favicon, and modal motion

Improve auto-follow behavior, redesign status/settings UI, and add privacy policy + cookie session storage

Codex-generated pull request

Add reactions, emoji picker, and message reply flow

Preload chat data and improve mention/emoji rendering

Improve avatar clipping and websocket event handling