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/mediamanager/partials/_toolbar.php

@@ -0,0 +1,42 @@
+<div class="layout-row min-size">
+    <div class="control-toolbar toolbar-padded">
+        <div class="toolbar-item toolbar-primary">
+            <div data-control="toolbar">
+                <?php if (!$this->readOnly): ?>
+                    <div class="btn-group offset-right">
+                        <button type="button" class="btn btn-primary wn-icon-upload" data-control="upload"><?= e(trans('backend::lang.media.upload')) ?></button>
+                        <button type="button" class="btn btn-primary wn-icon-folder" data-command="create-folder"><?= e(trans('backend::lang.media.add_folder')) ?></button>
+                    </div>
+                <?php endif; ?>
+
+                <button type="button" class="btn btn-default wn-icon-refresh empty offset-right" data-command="refresh"></button>
+
+                <?php if (!$this->readOnly): ?>
+                    <div class="btn-group offset-right">
+                        <button type="button" class="btn btn-default wn-icon-reply-all" data-command="move"><?= e(trans('backend::lang.media.move')) ?></button>
+                        <button type="button" class="btn btn-default wn-icon-trash" data-command="delete"><?= e(trans('backend::lang.media.delete')) ?></button>
+                    </div>
+                <?php endif; ?>
+
+                <div class="btn-group offset-right" id="<?= $this->getId('view-mode-buttons') ?>">
+                    <?= $this->makePartial('view-mode-buttons') ?>
+                </div>
+            </div>
+        </div>
+        <div class="toolbar-item" data-calculate-width>
+            <div class="relative loading-indicator-container size-input-text">
+                <input
+                    type="text"
+                    name="search"
+                    value="<?= e($searchTerm) ?>"
+                    class="form-control icon search growable"
+                    placeholder="<?= e(trans('backend::lang.media.search')) ?>"
+                    data-control="search"
+                    autocomplete="off"
+                    data-load-indicator
+                    data-load-indicator-opaque
+                />
+            </div>
+        </div>
+    </div>
+</div>