Added margin between opentsdb queries

src/app/features/opentsdb/partials/query.editor.html

@@ -1,7 +1,7 @@
 <div class="editor-row" style="margin-top: 10px;">
 
   <div  ng-repeat="target in panel.targets"
-        class="tight-form-container"
+        style="margin-bottom: 10px;"
         ng-class="{'tight-form-disabled': target.hide}"
         ng-controller="OpenTSDBQueryCtrl"
         ng-init="init()">