fix(mods): set exit code to 0 when user cancels mod installation/removal

lgsm/modules/command_mods_install.sh

@@ -88,6 +88,7 @@ if [ -f "${modsinstalledlistfullpath}" ]; then
 		fn_script_log_warn "${modprettyname} is already installed"
 		echo -e " * Any configs may be overwritten."
 		if ! fn_prompt_yn "Continue?" Y; then
+			exitcode=0
 			core_exit.sh
 		fi
 		fn_script_log_info "User selected to continue"

lgsm/modules/command_mods_remove.sh

@@ -47,6 +47,7 @@ done
 fn_print_warning_nl "You are about to remove ${cyan}${usermodselect}${default}."
 echo -e " * Any custom files/configuration will be removed."
 if ! fn_prompt_yn "Continue?" Y; then
+	exitcode=0
 	core_exit.sh
 fi