Default the query history to hidden in Spinner.

spinner/lib/src/main/assets/query.hbs

@@ -16,8 +16,8 @@
     </form>
 
     <!-- Container for previous queries -->
-    <h1>Query History</h1>
-    <table id="history-container"></table>
+    <h1 class="collapse-header" data-for="history-container">Query History</h1>
+    <table id="history-container" class="hidden"></table>
 
     <!-- Query Result -->
     <h1>Data</h1>