fix[Select]: add missing type definition (#16504)

* fix[Select]: add missing type definition

* update docs

components/select/index.en-US.md

@@ -38,6 +38,7 @@ Select component to select value from options.
 | getPopupContainer | Parent Node which the selector should be rendered to. Default to `body`. When position issues happen, try to modify it into scrollable content and position it relative. [Example](https://codesandbox.io/s/4j168r7jw0) | function(triggerNode) | () => document.body |
 | labelInValue | whether to embed label in value, turn the format of value from `string` to `{key: string, label: ReactNode}` | boolean | false |
 | maxTagCount | Max tag count to show | number | - |
+| maxTagTextLength | Max tag count to show | number | - |
 | maxTagPlaceholder | Placeholder for not showing tags | ReactNode/function(omittedValues) | - |
 | mode | Set mode of Select | 'default' \| 'multiple' \| 'tags' | 'default' |
 | notFoundContent | Specify content to show when no result matches.. | string | 'Not Found' |

components/select/index.tsx

@@ -66,6 +66,7 @@ export interface SelectProps<T = SelectValue> extends AbstractSelectProps {
   onMouseEnter?: (e: React.MouseEvent<HTMLInputElement>) => any;
   onMouseLeave?: (e: React.MouseEvent<HTMLInputElement>) => any;
   maxTagCount?: number;
+  maxTagTextLength?: number;
   maxTagPlaceholder?: React.ReactNode | ((omittedValues: T[]) => React.ReactNode);
   optionFilterProp?: string;
   labelInValue?: boolean;

components/select/index.zh-CN.md

@@ -39,6 +39,7 @@ title: Select
 | getPopupContainer | 菜单渲染父节点。默认渲染到 body 上，如果你遇到菜单滚动定位问题，试试修改为滚动的区域，并相对其定位。[示例](https://codesandbox.io/s/4j168r7jw0) | Function(triggerNode) | () => document.body |
 | labelInValue | 是否把每个选项的 label 包装到 value 中，会把 Select 的 value 类型从 `string` 变为 `{key: string, label: ReactNode}` 的格式 | boolean | false |
 | maxTagCount | 最多显示多少个 tag | number | - |
+| maxTagTextLength | 最大显示的 tag 文本长度 | number | - |
 | maxTagPlaceholder | 隐藏 tag 时显示的内容 | ReactNode/function(omittedValues) | - |
 | mode | 设置 Select 的模式为多选或标签 | 'multiple' \| 'tags' | - |
 | notFoundContent | 当下拉列表为空时显示的内容 | string | 'Not Found' |