Bug 26826: Set focus for cursor to name input box when creating a new list

Bug 26826: Set focus for cursor to name input box when creating a new list

This patch adds the "focus" class to the list name input field so that
it automatically has focus when the page loads.

To test, apply the patch and open the lists page in the staff client.

- Click "New list."
- When the list creation page loads the "Name" field should have focus.

Signed-off-by: B Johnson <barbara.johnson@bedfordtx.gov>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>