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/controllers/users/_hint_trashed.php

@@ -0,0 +1,9 @@
+<div class="layout-row min-size">
+    <div class="callout callout-danger">
+        <div class="header">
+            <i class="icon-trash"></i>
+            <h3><?= e(trans('backend::lang.user.trashed_hint_title')) ?></h3>
+            <p><?= e(trans('backend::lang.user.trashed_hint_desc')) ?></p>
+        </div>
+    </div>
+</div>