List all available CSS variables that can be overridden in Mishka Chelekom.

These variables can be customized in priv/mishka_chelekom/config.exs using the css_overrides map. Variable names use underscores (e.g., primary_light) which map to CSS variables with dashes (e.g., --primary-light).

By default, all values are commented out in the config file and use the default colors. Uncomment and change any value to customize your design system.