feat(i18n): localize settings and dns menu leftovers

scripts/menus/check_port.sh

@@ -1,15 +1,17 @@
 #!/bin/sh
 # Copyright (C) Juewuy
 
+load_lang check_port
+
 check_port() {
     if [ "$1" -gt 65535 ] || [ "$1" -le 1 ]; then
-        msg_alert "\033[31m输入错误！请输入正确的数值(1-65535)！\033[0m"
+        msg_alert "\033[31m$CHECK_PORT_RANGE_ERR\033[0m"
         return 1
     elif echo "|$mix_port|$redir_port|$dns_port|$db_port|" | grep -q "|$1|"; then
-        msg_alert "\033[31m输入错误！请不要输入重复的端口！\033[0m"
+        msg_alert "\033[31m$CHECK_PORT_DUP_ERR\033[0m"
         return 1
     elif netstat -ntul | grep -q ":$1[[:space:]]"; then
-        msg_alert "\033[31m当前端口已被其他进程占用，请重新输入！\033[0m"
+        msg_alert "\033[31m$CHECK_PORT_OCCUPIED_ERR\033[0m"
         return 1
     else
         return 0