Добавляем кнопку "Создать тему" при просмотре тем форума

<xf:breadcrumb source="$forum.getBreadcrumbs()" />

<xf:breadcrumb source="$forum.getBreadcrumbs()" />
<xf:pageaction if="$forum.canCreateThread()">
    <xf:button href="{{ link('forums/post-thread', $forum) }}" class="button--cta" icon="write">
        {{ phrase('post_thread') }}
    </xf:button>
</xf:pageaction>