fix(theme-doc): tweak colorSplit

Author: csr632

packages/theme-doc/src/Layout/common.less

@@ -1,4 +1,4 @@
-@colorSplit: rgba(5, 5, 5, 0.06);
+@colorSplit: rgba(5, 5, 5, 0.1);
 
 .media-width-md(@rules) {
   // antd Grid breakpoint `md`

packages/theme-doc/src/Layout/index.tsx

@@ -43,7 +43,7 @@ const AppLayout: React.FC<React.PropsWithChildren<Props>> = ({ children }) => {
   }, [isSlideSiderOpen, screenWidth])
 
   return (
-    <ConfigProvider prefixCls="vp-antd">
+    <ConfigProvider prefixCls="vp-antd" theme={theme}>
       <LayoutContext.Provider value={layoutCtxVal}>
         <div className={s.layout}>
           <AppHeader />
@@ -68,3 +68,9 @@ const AppLayout: React.FC<React.PropsWithChildren<Props>> = ({ children }) => {
 }
 
 export default AppLayout
+
+const theme = {
+  token: {
+    colorSplit: 'rgba(5, 5, 5, 0.1)',
+  },
+} as const