- migrate featureinfobox to Tailwind
- migrate featureinfobox-content to Tailwind
- migrate fullscreenmessage-content to Tailwind so we can delete css/fullscreenmessagebox.css
The landscape-mode is somethign that Tailwind does not support AFAIK. Instead, I migrated the one css-definition that was left over but required to a tailwind-like class name `.landscape\:max-h-screen`. Note the escaped colon with is required so css supports colon based class names.
