net-im/gtkcord4: update to 0.0.14

• Install extra files (like Nix, AUR, Gentoo)

Changes: https://github.com/diamondburned/gtkcord4/releases/tag/v0.0.14
Reported by: GitHub (watch releases)

(cherry picked from commit 45f736c913cd9984dfa1c8fe442fab6be1b25f9b)