Revert "fix: center header navigation vertically"

This reverts commit 3cbe52ef7fd95ad04dbabbee47413d83474e6865.

src/components/Header.vue

@@ -179,7 +179,7 @@ export default {
   width: 140px;
   height: 80px;
   float: left;
-  padding: 20px;
+  padding: 8px 20px;
   box-sizing: border-box;
 }
 
@@ -199,7 +199,9 @@ export default {
   float: right;
   height: 80px;
   display: flex;
-  align-items: center;
+  align-items: flex-end;
+  padding-bottom: 8px;
+  box-sizing: border-box;
 }
 
 /* 导航栏 每个导航 */