This new release will support the latest toml config format

• Remove the preview option for now since it is buggy, you have to apply the theme to see the changes
• If your old config is not preserved, you can restore them by renaming the latest backup file mv alacritty.toml.xxxxxx.bak alacritty.toml
• Also ensure you remove these sections in your old config file to the new theme to take effect: - [colors.bright] - [colors.normal] - [colors.primary]