feat: VivesPOS landing on Winter CMS 1.2 — theme + plugin + Dockerfile

- Base: wintercms/winter branch 1.2 (full framework)
- Theme vivespos: Canvas 7 + Bootstrap 5 CDN, custom CSS
- Layout: deferred GTM/GA4 tracking, JSON-LD SoftwareApplication
- Partials: hero (offline-first), features, modes (offline/nube toggle),
  screenshots, pricing (3 planes), comparison, FAQ, CTA
- Plugin VivesPOS.Site with ContactForm
- Dockerfile: PHP 8.2 Apache, port 80, healthcheck
- Added winter/wn-pages, blog, sitemap, seo plugins
- Active theme set to vivespos

modules/backend/widgets/form/partials/_section.php

@@ -0,0 +1,30 @@
+<?php
+$type = $tabs->section;
+
+$containerCss = 'layout-row min-size';
+
+if ($tabs->stretch) {
+    $containerCss = 'layout-row';
+}
+?>
+<!-- <?= ucfirst($type) ?> Tabs -->
+<div class="<?= $containerCss ?>">
+    <?php if ($tabs->suppressTabs): ?>
+
+        <div
+            id="<?= $this->getId($type.'Tabs') ?>"
+            class="form-tabless-fields <?= $tabs->cssClass ?>">
+            <?= $this->makePartial('form_fields', ['fields' => $tabs]) ?>
+        </div>
+
+    <?php else: ?>
+
+        <div
+            id="<?= $this->getId($type.'Tabs') ?>"
+            class="control-tabs <?= $type ?>-tabs layout <?= $tabs->cssClass ?>"
+            data-control="tab">
+            <?= $this->makePartial('form_tabs', ['tabs' => $tabs]) ?>
+        </div>
+
+    <?php endif ?>
+</div>