accessibility updates

- hiding search box label so that it's only visible for screen readers

web/themes/asc_bootstrap/assets/sass/components/_filters.scss

@@ -883,6 +883,15 @@
 
   .form-item-combine {
 
+    .control-label {
+      position:absolute;
+      left:-10000px;
+      top:auto;
+      width:1px;
+      height:1px;
+      overflow:hidden;
+    }
+
     @media (max-width: 768px) {
       width: 100%;
     }

web/themes/asc_bootstrap/css/style.css

@@ -7804,6 +7804,13 @@ article .field--name-body {
     top: 0px;
     left: 4px;
     color: #ffffff; }
+#views-exposed-form-people-directory-page-1 .form-item-combine .control-label {
+  position: absolute;
+  left: -10000px;
+  top: auto;
+  width: 1px;
+  height: 1px;
+  overflow: hidden; }
 @media (max-width: 768px) {
   #views-exposed-form-people-directory-page-1 .form-item-combine {
     width: 100%; } }