v0.5.13

Changelog

• 4278f44: Fix AppImage launcher permissions before packaging (#17) (@fcjr)
• 7401571: Prerender the landing page and add a DFU port guide (@fcjr)
• 51aa16a: Use postflight_steps in the Homebrew cask (@fcjr)
• 3cf8655: chore(release): bump version to 0.5.13 (@fcjr)