Adds six release entries with bulleted highlights, moves the 'Latest'
badge to v1.13.16, and demotes v1.13.10 to a regular entry.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

…ions

Expands the Presentation (F5) card in features.html and adds a tools
table with shortcuts in docs.html. Calls out that annotations are
ephemeral (session-only) and never modify the source PDF.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

…and styles.css

Replaces 6 inline style/onfocus/onblur blocks with a single .skip-link
CSS rule (driven by :focus + .is-focused) plus a JS focus/blur handler
that mirrors the class for browsers that strip focus on click. Keeps
the accent color theme-driven via var(--accent) instead of hard-coding
#10a597.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

… policies

Cloudflare Pages reads _headers and applies the rules to all routes.
CSP allows 'self' plus Google Fonts (stylesheet + woff2) and the
shields.io stars badge embedded on the home page. Inline styles are
still required by current markup (kept 'unsafe-inline' for style-src
only; script-src is strict 'self'). Frame embedding is disabled.

If the site moves back to bare GitHub Pages these headers must be
configured in the Cloudflare dashboard instead — the file header
documents that fallback path.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Removes 80 U+2014 em-dashes from the six HTML pages (titles, OG and
Twitter meta tags, and body copy). Each occurrence was rewritten with
either a hyphen, a comma, a colon, or a semicolon depending on the
sentence flow; nothing was machine-replaced blindly. The decorative
em-dash on line 1 of styles.css (CSS comment banner) is left intact.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Removes direct .exe (NSIS installer and portable) download buttons
for Windows. Users on Windows are now directed exclusively to the
Microsoft Store listing, which provides automatic updates and
platform validation.

Linux (AppImage, tar.gz) and macOS (DMG) downloads remain available
directly from GitHub Releases since those platforms don't have an
equivalent app store presence.