fix(breadcrumb): set the default opening method of navigation (#4916)

* fix(breadcrumb): set the default opening method of BreadcrumbItem navigation

* docs(breadcrumb): clarify href and to usage in documentation

Author: rofixro

src/breadcrumb/breadcrumb-item.tsx

@@ -68,12 +68,12 @@ export default defineComponent({
     const { proxy } = getCurrentInstance();
 
     const handleClick = () => {
-      if (props.href) {
-        window.location.href = props.href;
-      }
       const router = props.router || proxy.$router;
+
       if (props.to && router) {
         props.replace ? router.replace(props.to) : router.push(props.to);
+      } else {
+        window.location.href = props.href;
       }
     };
     const bindEvent = (e: MouseEvent) => {

src/breadcrumb/breadcrumb.md

@@ -23,13 +23,13 @@ theme | String | light | 组件风格。可选项：light | N
 content | String / Slot / Function | - | 子元素。TS 类型：`string \| TNode`。[通用类型定义](https://github.com/Tencent/tdesign-vue-next/blob/develop/src/common.ts) | N
 default | String / Slot / Function | - | 子元素，同 content。TS 类型：`string \| TNode`。[通用类型定义](https://github.com/Tencent/tdesign-vue-next/blob/develop/src/common.ts) | N
 disabled | Boolean | - | 是否禁用当前项点击 | N
-href | String | - | 跳转链接 | N
+href | String | - | 跳转链接，不能与 to 共用 | N
 icon | Slot / Function | - | 面板屑项内的前置图标。TS 类型：`TNode`。[通用类型定义](https://github.com/Tencent/tdesign-vue-next/blob/develop/src/common.ts) | N
 maxWidth | String | undefined | 最大宽度，超出后会以省略号形式呈现。优先级高于 Breadcrumb 中的 maxItemWidth | N
 replace | Boolean | false | 路由跳转是否采用覆盖的方式（覆盖后将没有浏览器历史记录） | N
 router | Object | - | 路由对象。如果项目存在 Router，则默认使用 Router。TS 类型：`any` | N
 target | String | _self | 链接或路由跳转方式。可选项：_blank/_self/_parent/_top | N
-to | String / Object | - | 路由跳转目标，当且仅当 Router 存在时，该 API 有效。TS 类型：`string \| Route` `interface Route { path?: string; name?: string; hash?: string; query?: RouteData; params?: RouteData }` `type RouteData = { [key: string]: string \| string[] }`。[详细类型定义](https://github.com/Tencent/tdesign-vue-next/tree/develop/src/breadcrumb/type.ts) | N
+to | String / Object | - | 路由跳转目标，当且仅当 Router 存在时，该 API 有效。不能与 href 共用。TS 类型：`string \| Route` `interface Route { path?: string; name?: string; hash?: string; query?: RouteData; params?: RouteData }` `type RouteData = { [key: string]: string \| string[] }`。[详细类型定义](https://github.com/Tencent/tdesign-vue-next/tree/develop/src/breadcrumb/type.ts) | N
 onClick | Function |  | TS 类型：`(e: MouseEvent) => void`<br/>点击时触发 | N
 
 ### BreadcrumbItem Events