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/partials/_settings_menu_toolbar.php

@@ -0,0 +1,14 @@
+<div class="layout control-toolbar">
+    <div class="layout-cell">
+        <div class="relative toolbar-item loading-indicator-container size-input-text">
+            <input placeholder="<?= e(trans('system::lang.settings.search')) ?>" type="text" name="search" value="" 
+                class="form-control icon search"
+                id="settings-search-input"
+                autocomplete="off"
+                data-track-input
+                data-load-indicator
+                data-load-indicator-opaque
+            />
+        </div>
+    </div>
+</div>