docs: update box-shadow

.dumi/theme/slots/Header/index.tsx

@@ -33,7 +33,7 @@ const useStyle = () => {
       z-index: 10;
       max-width: 100%;
       background: ${token.colorBgContainer};
-      box-shadow: ${token.boxShadow};
+      box-shadow: ${token.boxShadowTertiary};
 
       @media only screen and (max-width: ${token.mobileMaxWidth}px) {
         text-align: center;

scripts/check-site.js

@@ -41,7 +41,7 @@ describe('site test', () => {
   const expectComponent = async (component) => {
     const { status, $ } = await render(`/${component}/`);
     expect(status).toBe(200);
-    expect($('h1').text().toLowerCase()).toMatch(handleComponentName(component));
+    expect($('main h1').text().toLowerCase()).toMatch(handleComponentName(component));
   };
 
   beforeAll(() => {