- Changed apps-dropdown right position from 60px to 0 in app.css
- Wrapped apps button and dropdown in a container with position:relative
- Moved dropdown to be a sibling of the button inside the container
- Removed duplicate dropdown from header-right section
- Update chat.css to use consistent CSS variable names from app.css
- Changed --primary-color to --accent-color
- Changed --surface-color to --secondary-bg
- Changed --text-color to --text-primary
- Changed --background-color to --primary-bg
- Changed --primary-hover to --accent-hover
- Ensures proper theming across all 6 themes
