tweak collpse animation easing

components/layout/style/index.less

@@ -40,7 +40,7 @@
   }
 
   &-sider {
-    transition: all .15s @ease-in-out;
+    transition: all .2s;
     position: relative;
     background: @layout-sider-background;
 

components/menu/style/index.less

@@ -14,7 +14,7 @@
   color: @text-color;
   background: @component-background;
   line-height: 46px;
-  transition: background .3s @ease-in-out, width .15s @ease-in-out;
+  transition: background .3s, width .2s;
 
   &-hidden {
     display: none;