Add text-autospace to article view for proper CJK rendering

[heyalexhsu]

Hi team! Love using NetNewsWire and I use it everyday! Also first time submitting a PR! I noticed text-autospace has been supported by major browsers recently and this will make CJK rendering prettier and simpler - a lot of bloggers currently insert spaces manually to achieve the effect, but this is not ideal.

I'm not sure where's the best place to add this so currently I added to the article-content classes rather than directly applying to body or article.

Thanks! Let me know your thoughts!

text-autospace - CSS | MDN

Summary

Adds text-autospace: normal to the article-content classes (.articleTitle, .articleDateline, .articleDatelineTitle, .articleBody) in the shared article-rendering stylesheet, so WebKit inserts the standard 1/4em gap between CJK characters and adjacent Latin alphanumerics/symbols. This matches conventional CJK typography and noticeably improves legibility for articles that mix scripts (common in Chinese/Japanese tech blogs that reference English brand names, library names, or numbers inline).

Before / After

Notice there now is a gap between CJK text and alphanumeric text.

	Before (without text-autospace)	After (with text-autospace)
macOS
iOS

Why declare it explicitly

normal is the spec default in CSS Text 4, but WebKit currently ships with an initial value of no-autospace for backward compatibility, so the property must be set explicitly to take effect.

Compatibility

text-autospace is supported in WebKit starting Safari 18.2 / macOS 15.2 / iOS 18.2 (late 2024). On older OS versions the declaration is silently ignored — no layout regression.

Scope

The rule is scoped to the four article-content classes used in Shared/Article Rendering/template.html rather than body or :root, to keep the change confined to user-generated article content where mixed-script text actually occurs. The header/feed-link chrome is unaffected.

Test plan

• Verified visually on macOS with a Chinese article — extra breathing room appears around Latin/numeric runs in both headings and body text.
• Verified visually on iOS with a Chinese article.