Set accessibility description of filter field so screenreaders can tell users where they are

Author: Joe Wegner

app/src/cc/arduino/contributions/ui/InstallerJDialog.java

@@ -133,6 +133,7 @@ protected void onFilter(String[] _filters) {
           updateIndexFilter(filters, categoryFilter);
         }
       };
+      filterField.getAccessibleContext().setAccessibleDescription(tr("Search Filter"));
 
       // Add cut/copy/paste contextual menu to the search filter input field.
       JPopupMenu menu = new JPopupMenu();