Reduce padding in query buttons box

Signed-off-by: Carlos Martín <carlos.martin.sanchez@gmail.com>

Author: carlosms

frontend/src/components/QueryBox.less

@@ -25,7 +25,7 @@
     .button-row {
         flex: 0 0;
         border-top: solid 1px @primary-tint-3;
-        padding: @big-spacing;
+        padding: @small-spacing @big-spacing;
         margin: 0;
 
         .buttons-wrapper {