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/system/controllers/settings/index.php

@@ -0,0 +1,16 @@
+<div class="layout">
+    <div class="layout-cell wn-logo-transparent">
+        <script>
+            $(document).ready(function() {
+
+                var $search = $('#settings-search-input'),
+                    focusSearch = function() {
+                        setTimeout(function() { $search.focus().select() }, 10)
+                    }
+
+                $search.on('blur', focusSearch)
+                focusSearch()
+            })
+        </script>
+    </div>
+</div>