Rewrite create shortcut for work with flatpak

data_from_portwine/scripts/zen_yad_gui

@@ -655,7 +655,10 @@ portwine_create_shortcut () {
 
         echo "[Desktop Entry]" > "${PORT_WINE_PATH}/${name_desktop}.desktop"
         echo "Name=${name_desktop}" >> "${PORT_WINE_PATH}/${name_desktop}.desktop"
-        echo "Exec=env "\"${PORT_SCRIPTS_PATH}/start.sh\" \"${portwine_exe}\" "" >> "${PORT_WINE_PATH}/${name_desktop}.desktop"
+        if [[ $(cat /etc/os-release | grep -i "flatpak" )  ]]
+        then echo "Exec="flatpak run com.castrofidel.portproton \"${portwine_exe}\" "" >> "${PORT_WINE_PATH}/${name_desktop}.desktop"
+        else echo "Exec=env "\"${PORT_SCRIPTS_PATH}/start.sh\" \"${portwine_exe}\" "" >> "${PORT_WINE_PATH}/${name_desktop}.desktop"
+        fi
         echo "Type=Application" >> "${PORT_WINE_PATH}/${name_desktop}.desktop"
         echo "Categories=Game" >> "${PORT_WINE_PATH}/${name_desktop}.desktop"
         echo "StartupNotify=true" >> "${PORT_WINE_PATH}/${name_desktop}.desktop"
@@ -679,7 +682,10 @@ portwine_create_shortcut () {
             echo "#!/usr/bin/env bash" > "${STEAM_SCRIPTS}/${name_desktop}.sh"
             echo "export START_FROM_STEAM=1" >> "${STEAM_SCRIPTS}/${name_desktop}.sh"
             echo "export LD_PRELOAD=" >> "${STEAM_SCRIPTS}/${name_desktop}.sh"
-            echo "\"${PORT_SCRIPTS_PATH}/start.sh\" \"${portwine_exe}\" " >> "${STEAM_SCRIPTS}/${name_desktop}.sh"
+            if [[ $(cat /etc/os-release | grep -i "flatpak" )  ]]
+            then echo "flatpak run com.castrofidel.portproton \"${portwine_exe}\" " >> "${STEAM_SCRIPTS}/${name_desktop}.sh"
+            else echo "\"${PORT_SCRIPTS_PATH}/start.sh\" \"${portwine_exe}\" " >> "${STEAM_SCRIPTS}/${name_desktop}.sh"
+            fi
             chmod u+x "${STEAM_SCRIPTS}/${name_desktop}.sh"
             "${PORT_SCRIPTS_PATH}/add_in_steam.sh"
             if [[ "${PW_SKIP_RESTART_STEAM}" != 1 ]] && pgrep -i steam &>/dev/null ; then