Move the text of the remove button into a span.

This is done to provide better styling options such as hiding the
text and only displaying the icon, only showing the text on
screen readers.

Author: bhch

src/components/containers.js

@@ -20,7 +20,7 @@ export function FormRow(props) {
                     onClick={(e) => props.onRemove(name)}
                     title="Remove"
                 >
-                    ×
+                    <span>&times;</span>
                 </Button>
             }
             <div className="rjf-form-row-inner">

src/ui.js

@@ -179,7 +179,7 @@ export function getArrayFormRow(data, schema, name, onChange, onAdd, onRemove, l
                                 onClick={(e) => onRemove(name + '-' + index)}
                                 title="Remove"
                             >
-                                ×
+                                <span>&times;</span>
                             </Button>
                         }
                         {i}