mini stylefix to select component

packages/grafana-ui/src/components/Select/_Select.scss

@@ -102,6 +102,7 @@ $select-input-bg-disabled: $input-bg-disabled;
 .gf-form-select-box__value-container {
   display: table-cell;
   padding: 6px 10px;
+  vertical-align: middle;
   > div {
     display: inline-block;
   }