fix: laoding优化

package.json

 {
     "name": "panda-xform",
-    "version": "2.6.3",
-    "description": "2.6.3: 只读情况去掉必填校验",
+    "version": "2.6.4",
+    "description": "2.6.4: laoding优化",
     "keywords": [
         "panda-xform"
     ],

src/core/FormRender/index.js

@@ -103,7 +103,7 @@ const XRender = (props, ref) => {
 
   return (
     <div className={prefixCls}>
-      <Spin spinning={loading}>
+      <Spin spinning={loading} tip="Loading...">
         <FormRender
           configProvider={{ prefixCls: pandaXform }}
           form={form}

src/main.less

@@ -28,7 +28,8 @@ body #app {
     }
   }
   .@{ant-prefix}-spin-spinning {
-    background: rgb(255, 255, 255, 0.7);
+    background: rgba(255, 255, 255, 0.7);
+    max-height: none !important;
   }
   .@{ant-prefix}-tabs-content-holder {
     height: 664px;