v2.2.4 — fix in-app GitHub links after repo rename

Fixed

• In-app GitHub links and contributor docs pointed to old repo name.
  Repository was renamed dualsense-mac-mapper → dualsense-mapper on
  GitHub. While GitHub auto-redirects the old URL, the new name is now
  canonical. Updated:
  • rust/web/settings.js "About" pane — GitHub releases link in the
    in-app Settings → About section.
  • rust/README.md Quick-start — release download link.
  • CLAUDE.md — contributor-guidelines title.
  • CHANGELOG.md — release-tag URL anchors.
    Legacy reference legacy-python/dualsense-mac-mapper.py (real frozen
    filename) intentionally untouched.

Install

Download dualsense-mapper.exe, drop in a writable folder, double-click. First run writes dualsense-mapper.json next to the exe with an inline keyboard cheat sheet.