fix(*): some pc h5 cross issue

Author: youluna

src/breadcrumb/mobile/index.jsx

@@ -1,3 +1,3 @@
-import { Breadcrumb } from '@alifd/meet-react';
+import { BreadCrumb } from '@alifd/meet-react';
 
-export default Breadcrumb;
+export default BreadCrumb;

src/shell/main.scss

@@ -156,13 +156,17 @@
 
 
         &#{$shell-prefix}-navigation {
+            overflow-x: visible;
+            overflow-y: hidden;
             display: flex;
             flex-direction: column;
             justify-self: flex-start;
             transition: all .2s $motion-ease;
         }
 
         &#{$shell-prefix}-tooldock {
+            overflow-x: visible;
+            overflow-y: hidden;
             display: flex;
             flex-direction: column;
             align-items: center;