feat: 优化PureTableBar组件，title可使用插槽 (#560)

* feat: 优化PureTableBar组件，title可使用插槽

src/components/RePureTableBar/src/bar.tsx

@@ -200,9 +200,13 @@ export default defineComponent({
 
     return () => (
       <>
-        <div {...attrs} class="w-[99/100] mt-4 px-2 pb-2 bg-bg_color">
+        <div {...attrs} class="w-[99/100] mt-2 px-2 pb-2 bg-bg_color">
           <div class="flex justify-between w-full h-[60px] p-4">
-            <p class="font-bold truncate">{props.title}</p>
+            {slots?.title ? (
+              slots.title()
+            ) : (
+              <p class="font-bold truncate">{props.title}</p>
+            )}
             <div class="flex items-center justify-around">
               {slots?.buttons ? (
                 <div class="flex mr-4">{slots.buttons()}</div>