fix(autologin/return-to-gamemode): Don't assume path to home directory (

#571)

In cases where the home directory path differs from the user name, it isn't
enough to use a hard path that assumes the user's username is in it.

system_files/deck/shared/usr/bin/bazzite-autologin

@@ -6,6 +6,7 @@ IMAGE_INFO="/usr/share/ublue-os/image-info.json"
 BASE_IMAGE_NAME=$(jq -r '."base-image-name"' < $IMAGE_INFO)
 
 USER=$(id -nu 1000)
+HOME=$(getent passwd $USER | cut -d: -f6)
 
 # SteamOS SDDM config
 SDDM_CONF='/etc/sddm.conf.d/steamos.conf'
@@ -18,7 +19,7 @@ if [[ -f ${AUTOLOGIN_CONF} ]]; then
 fi
 
 # Configure autologin if Steam has been updated
-if [[ ! -f ${DESKTOP_AUTOLOGIN} && -f /var/home/$USER/.local/share/Steam/ubuntu12_32/steamui.so ]]; then
+if [[ ! -f ${DESKTOP_AUTOLOGIN} && -f $HOME/.local/share/Steam/ubuntu12_32/steamui.so ]]; then
   sed -i 's/.*Session=.*/Session=gamescope-session.desktop/g' ${SDDM_CONF}
 elif [[ ${BASE_IMAGE_NAME} =~ "kinoite" ]]; then
   if ${DESKTOP_WAYLAND}; then

system_files/deck/shared/usr/bin/return-to-gamemode

@@ -4,12 +4,13 @@ IMAGE_INFO="/usr/share/ublue-os/image-info.json"
 BASE_IMAGE_NAME=$(jq -r '."base-image-name"' < $IMAGE_INFO)
 
 USER=$(id -nu 1000)
+HOME=$(getent passwd $USER | cut -d: -f6)
 
 # SteamOS autologin SDDM config
 AUTOLOGIN_CONF='/etc/sddm.conf.d/zz-steamos-autologin.conf'
 
 # Configure autologin if Steam has been updated
-if [[ -f /var/home/$USER/.local/share/Steam/ubuntu12_32/steamui.so ]]; then
+if [[ -f $HOME/.local/share/Steam/ubuntu12_32/steamui.so ]]; then
   {
     echo "[Autologin]"
     echo "Session=gamescope-session.desktop"