Do not warn about LayoutDirection in SearchField
Summary:
LayoutDirection can only be used on visual items, Action is not one of
those. So we get a warning about that for every search field. This fixes
that.
Test Plan:
Have an application that uses SearchField, see that it no longer warns
about LayoutDirection.
Reviewers: Kirigami, broulik, ognarb, mart
Reviewed By: Kirigami, broulik, ognarb, mart
Subscribers: ognarb, broulik, plasma-devel
Tags: Kirigami
Differential Revision: https://phabricator.kde.org/D24499