sw content controls, combo box: make the dropdown case read-only

Dropdown should be read-only (select from existing list items only),
combo box should be read-write (accepting free-form user input as well).

Now that we have a combo box, allow editing a combo box's content, but
turn dropdown into a read-only control.

Change-Id: Ie9434eaf2580be8ce154ec1126f7768eb9401254
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/140338
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Jenkins

0 files changed, 0 insertions, 0 deletions