support user custom exchange rates data

src/locales/zh_Hans.json

@@ -1171,6 +1171,9 @@
         "invalid beancount file": "无效的 Beancount 文件",
         "not support include directive for beancount file": "不支持 Beancount 文件的 \"include\" 指令",
         "invalid amount expression": "金额表达式无效",
+        "user custom exchange rate data not found": "用户自定义汇率数据不存在",
+        "cannot update exchange rate data for base currency": "不能更新默认货币的汇率数据",
+        "cannot delete exchange rate data for base currency": "不能删除默认货币的汇率数据",
         "query items cannot be blank": "请求项目不能为空",
         "query items too much": "请求项目过多",
         "query items have invalid item": "请求项目中有非法项目",
@@ -2039,6 +2042,7 @@
     "WebAuthn is not enabled": "WebAuthn 没有启用",
     "Are you sure you want to re-login?": "您确定要重新登录？",
     "Exchange Rates Data": "汇率数据",
+    "User Custom": "用户自定义",
     "Base Currency": "基准货币",
     "Base Amount": "基准金额",
     "Set as Base": "设置为基准",
@@ -2049,6 +2053,11 @@
     "Exchange rates data has been updated": "汇率数据已更新",
     "Exchange rates data is up to date": "汇率数据已是最新",
     "Unable to retrieve exchange rates data": "无法获取汇率数据",
+    "Update User Custom Exchange Rate": "更新用户自定义汇率",
+    "You have updated exchange rate": "您已经更新了汇率",
+    "Unable to update user custom exchange rate": "无法更新用户自定义汇率",
+    "Are you sure you want to delete this user custom exchange rate?": "您确定要删除该用户自定义汇率？",
+    "Unable to delete this user custom exchange rate": "无法删除该用户自定义汇率",
     "Use on Mobile Device": "在移动设备使用",
     "You can scan the QR code below on your mobile device.": "您可以在您的移动设备上扫描下方二维码。",
     "Switch to Mobile Version": "切换到移动版",