fix: remove blockHeader hasBottom props

Author: liuxy0551

src/blockHeader/demos/expand.tsx

@@ -8,18 +8,12 @@ export default () => {
             <BlockHeader
                 title="非受控标题"
                 defaultExpand={false}
-                hasBottom
                 onExpand={(expand) => console.log(expand)}
             >
                 Hello World!
             </BlockHeader>
 
-            <BlockHeader
-                title="受控标题"
-                expand={expand}
-                onExpand={(expand) => setExpand(expand)}
-                hasBottom
-            >
+            <BlockHeader title="受控标题" expand={expand} onExpand={(expand) => setExpand(expand)}>
                 Hello World!
             </BlockHeader>
 

src/blockHeader/index.md

@@ -41,6 +41,6 @@ demo:
 | background       | 是否显示背景                       | `boolean`                               | `true`   |
 | defaultExpand    | 是否默认展开内容                   | `boolean`                               | `-`      |
 | expand           | 当前展开状态                       | `boolean`                               |          |
-| spaceBottom      | 自定义下边距，优先级高于 hasBottom | `number`                                | `16`     |
+| spaceBottom      | 自定义下边距                       | `number`                                | `16`     |
 | children         | 展开/收起的内容                    | `React.ReactNode`                       | -        |
 | onExpand         | 展开/收起时的回调                  | `(expand: boolean) => void`             | -        |