feat: The script is now steamify.sh

- setup-gamescope-boot.sh renamed to steamify.sh; all references updated.
- Releases publish the bundle as steamify.sh and, for older install commands, setup-gamescope-boot.sh.
- The Steamify shortcut runs steamify.sh.

lib/wizard-shortcut.sh

@@ -2,10 +2,10 @@
 # "Steamify shortcut" menu item: a desktop icon and an app launcher entry that
 # open the newest release of Steamify CachyOS in Konsole (curl | bash, like the
 # install command in the README), so it's never out of date.
-# Sourced by setup-gamescope-boot.sh; not meant to be run on its own.
+# Sourced by steamify.sh; not meant to be run on its own.
 
 WIZARD_RELEASE="https://github.com/theupriser/steamify-cachyos/releases/latest/download"
-WIZARD_URL="$WIZARD_RELEASE/setup-gamescope-boot.sh"
+WIZARD_URL="$WIZARD_RELEASE/steamify.sh"
 # Steam logo with a gear (assets/ in the repo, published with every release).
 WIZARD_ICON="${XDG_DATA_HOME:-$HOME/.local/share}/icons/hicolor/scalable/apps/cachyos-gamescope-boot-wizard.svg"
 WIZARD_LAUNCHER="${XDG_DATA_HOME:-$HOME/.local/share}/cachyos-gamescope-boot/run-wizard"