fix: Correct path to system flatpaks in install script

Author: EyeCantCU

system_files/desktop/usr/bin/ublue-flatpak-system-install

@@ -1,5 +1,5 @@
 #!/bin/bash
 
-cat /etc/flatpaks | while read line; do
+cat /etc/flatpak/install | while read line; do
   flatpak install --system --noninteractive --no-pull flathub $line
 done && mv /etc/flatpak/install /etc/flatpak/installed