1、修改设置代理-数字键盘可输入小数点；

lib/api/proxy.dart

@@ -156,6 +156,7 @@ Widget _textFieldItem({title, controller}) {
             child: TextField(
               maxLines: 1,
               controller: controller,
+              keyboardType: const TextInputType.numberWithOptions(decimal: true),
               decoration: const InputDecoration(
                 counterText: "",
                 border: InputBorder.none, //去掉下划线