Website improvements
- News articles, their covers and the RSS feed are available in English, and the changelog is shown in the browser's language.
- Wider content and more spacing in the navigation and page headings.
- Buttons and fields share the same shape across the site and the login screen.
- The changelog is presented as a timeline, with the date and version pinned beside each entry.
- The dark theme uses a very dark grey instead of pure black.
- Product views behave as images; their text is not selectable.