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/index/config_dashboard.yaml

@@ -0,0 +1,23 @@
+# ===================================
+#  Dashboard Config
+# ===================================
+
+defaultWidgets:
+
+   welcome:
+        class: Backend\ReportWidgets\Welcome
+        sortOrder: 50
+        configuration:
+            ocWidgetWidth: 7
+
+   systemStatus:
+        class: System\ReportWidgets\Status
+        sortOrder: 60
+        configuration:
+            ocWidgetWidth: 7
+
+   activeTheme:
+        class: Cms\ReportWidgets\ActiveTheme
+        sortOrder: 70
+        configuration:
+            ocWidgetWidth: 5