Fixes for the red link entry point dialog

1. Move input focus before positioning.
   If focus is after positioning, the page scrolls down,
   and this is not needed.

2. Move the close icon into the heading.
   Without this the icon is shown in a separate white field.

3. Fix the message key cx-redlink-title to cx-entrypoint-title.

Change-Id: Ie8bbe90b20b722e1242bebffddd069a9bd9f237a
Merge "Fixes for the red link entry point dialog"