feat: add free charge price mode for product buy page (#3015)

* feat: add free charge price mode for product buy page

* fix: improve code format

web/src/locales/zh/data.json

@@ -619,6 +619,7 @@
     "Processing...": "正在处理...",
     "Product": "商品",
     "Product - Tooltip": "商品名称",
+    "Recharged successfully": "充值成功",
     "Result": "结果",
     "Return to Website": "返回原网站",
     "The payment has been canceled": "付款已取消",
@@ -627,6 +628,8 @@
     "The payment is still under processing": "支付正在处理",
     "Type - Tooltip": "商品购买时的支付方式",
     "You have successfully completed the payment": "支付成功",
+    "You have successfully recharged": "您已成功充值",
+    "Your current balance is": "您现在的余额为",
     "please wait for a few seconds...": "请稍后...",
     "the current state is": "当前状态为"
   },
@@ -689,6 +692,8 @@
     "Edit Product": "编辑商品",
     "Image": "图片",
     "Image - Tooltip": "商品图片",
+    "Is recharge": "充值",
+    "Is recharge - Tooltip": "当前商品是否为充值商品",
     "New Product": "添加商品",
     "Pay": "支付方式",
     "PayPal": "PayPal",
@@ -1080,6 +1085,8 @@
     "Address line": "地址",
     "Affiliation": "工作单位",
     "Affiliation - Tooltip": "工作单位，如公司、组织名称",
+    "Balance": "余额",
+    "Balance - Tooltip": "用户的余额",
     "Bio": "自我介绍",
     "Bio - Tooltip": "用户的自我介绍",
     "Birthday": "生日",