refactor: improve installation process

The code changes in this commit refactor the installation process. The `command_install.sh` file has been modified to remove unnecessary code. Additionally, the `install_complete.sh` file has been updated to provide more informative messages based on the exit code. This improves the overall clarity and user experience during installation.

Co-authored-by: AI Assistant <[email protected]>

lgsm/modules/command_install.sh

@@ -48,8 +48,6 @@ else
 	fix.sh
 	install_stats.sh
 	install_complete.sh
-	if [ -z "${exitcode}" ]; then
-		exitcode=0
-	fi
+
 fi
 core_exit.sh

lgsm/modules/install_complete.sh

@@ -9,7 +9,21 @@ moduleselfname="$(basename "$(readlink -f "${BASH_SOURCE[0]}")")"
 
 echo -e ""
 echo -e "================================="
-echo -e "Install Complete!"
+
+if [ "${exitcode}" == "1" ]; then
+	echo -e "Install Failed!"
+	fn_script_log_fatal "Install Failed!"
+elif [ "${exitcode}" == "2" ]; then
+	echo -e "Install Completed with Errors!"
+	fn_script_log_error "Install Completed with Errors!"
+elif [ "${exitcode}" == "3" ]; then
+	echo -e "Install Completed with Warnings!"
+	fn_script_log_warn "Install Completed with Warnings!"
+elif [ -z "${exitcode}" ] || [ "${exitcode}" == "0" ]; then
+	echo -e "Install Complete!"
+	fn_script_log_pass "Install Complete!"
+fi
+
 fn_script_log_info "Install Complete!"
 echo -e ""
 echo -e "To start server type:"