- Add ThemeContext with CSS custom properties for all base colors
- Three theme modes: Dark (default), Light, OLED Black
- Six accent colors: Cyan, Violet, Emerald, Amber, Rose, Blue
- Theme switcher dropdown in header (palette icon)
- Persisted in localStorage
- CSS variables replace hardcoded hex colors in index.css and components
- i18n support (EN/FR) for theme labels
Add overflow-x: hidden and word-break styles to textarea to prevent
ugly horizontal scrollbar on Windows. Also hide the horizontal webkit
scrollbar track entirely.
Add ::-webkit-scrollbar rules matching the dark theme. Textarea gets
an even thinner 4px scrollbar. Fixes ugly default scrollbar on macOS.
Closes feedback #36.
Disables animations and reduces transition durations to near-zero
when the user has enabled reduced-motion in their OS settings.
Also replaces README screenshot placeholder with link to live demo.
