Fix for previous accessibility commit

Author: philwareham

dist/textpattern/jquery-ui.css

@@ -14,14 +14,15 @@
  * Hide jQuery UI  text but still allow screen reader access.
  */
 .ui-helper-hidden-accessible {
-  display: inline-block;
+  position: absolute;
   width: 1px;
   height: 1px;
   margin: -1px;
   padding: 0;
   border: 0;
   white-space: nowrap;
   overflow: hidden;
+  clip: rect(0 0 0 0);
   -webkit-clip-path: inset(50%);
           clip-path: inset(50%);
 }

dist/textpattern/jquery-ui.min.css

@@ -14,14 +14,15 @@
  */
 
 .ui-helper-hidden-accessible {
-    display: inline-block;
+    position: absolute;
     width: 1px;
     height: 1px;
     margin: -1px;
     padding: 0;
     border: 0;
     white-space: nowrap;
     overflow: hidden;
+    clip: rect(0 0 0 0);
     clip-path: inset(50%);
 }