Add missing gschema.override file, add groupinstall scripts to install devel-tools

files/gschema-overrides/zz1-power-button-settings.gschema.override

@@ -0,0 +1,2 @@
+[org.gnome.settings-daemon.plugins.power]
+power-button-action='interactive'

files/scripts/groupinstall.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+set -oex pipefail
+set +u
+
+dnf groupinstall "C Development Tools and Libraries" "Development Tools"

files/scripts/prepare-groupinstall.sh

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+#!/bin/bash
+
+set -oex pipefail
+set +u
+
+# Find the dnf groupinstall lines and extract quoted strings
+VALUE="$(grep '^dnf groupinstall' /tmp/files/scripts/groupinstall.sh | grep -o '"[^"]*"' | tr '\n' ' ')"
+echo "Extracted VALUE: $VALUE"
+
+if [ -z "$VALUE" ]; then
+	echo "No groups found in build.sh"
+	exit 0
+fi
+
+# Initialize an empty array
+declare -a GROUP_ARRAY
+
+
+# Use read with a custom delimiter to split the input string
+while IFS='"' read -ra parts; do
+for part in "${parts[@]}"; do
+	# Trim leading and trailing spaces and check if the part is not empty
+	trimmed=$(echo "$part" | xargs)
+	if [[ -n "$trimmed" ]]; then
+		GROUP_ARRAY+=("$trimmed")
+	fi
+done
+done <<< "$VALUE"
+echo "Raw Array without double-quotes: ${GROUP_ARRAY[*]}"
+
+IS_DNF5=$(dnf --version | { grep -sc dnf5 || test $? = 1; })
+echo "IS_DNF5: $IS_DNF5 (dnf4 = 0, else dnf5)"
+for GROUP_E in "${GROUP_ARRAY[@]}"; do 
+	echo "Getting pkgs for group: $GROUP_E"
+	if [ "$IS_DNF5" -ne 0 ]; then
+		#dnf5
+		OUTPUT="$OUTPUT $(dnf group info "$GROUP_E" 2>&1 | grep -E "packages|^[[:space:]]*:" | cut -d: -f2 | tr -s ' ' | tr -d '\n' | sed 's/^ //; s/ $//')" 
+	else 
+		#dnf4
+		OUTPUT="$OUTPUT $(dnf group info "$GROUP_E" 2>&1 | grep -v : | tr -d '\n' | tr -s '  ' | cut -c2-)"
+	fi
+done
+          
+          
+sed -i "s/^dnf groupinstall.*/rpm-ostree install $OUTPUT}/" /tmp/files/scripts/groupinstall.sh