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/updates/_install_themes.php

@@ -0,0 +1,106 @@
+<div>
+
+    <!-- Search -->
+    <form
+        role="form"
+        id="installThemesForm"
+        data-handler="onInstallTheme"
+        onsubmit="$.wn.installProcess.searchSubmit(this); return false">
+        <div class="product-search">
+            <input
+                name="code"
+                id="themeSearchInput"
+                class="product-search-input search-input-lg typeahead"
+                placeholder="<?= e(trans('system::lang.themes.search')) ?>"
+                data-search-type="themes"
+                />
+            <i class="icon icon-search"></i>
+            <i class="icon loading" style="display: none"></i>
+        </div>
+    </form>
+
+    <div class="row">
+
+        <div class="col-md-7">
+
+            <!-- Installed themes -->
+            <div id="themeList"
+                class="product-list-manager"
+                data-handler="onGetInstalledThemes"
+                data-view="product/theme">
+
+                <h4 class="section-header">
+                    <a href="<?= Backend::url('cms/themes') ?>"><?= e(trans('system::lang.themes.installed')) ?></a>
+                    <small>(<span class="product-counter"><?= count($installedThemes) ?></span>)</small>
+                </h4>
+
+                <?php if (!count($installedThemes)): ?>
+                    <div class="product-list-empty">
+                        <p><?= e(trans('system::lang.themes.no_themes')) ?></p>
+                    </div>
+                <?php else: ?>
+                    <ul class="product-list theme-list">
+                        <?php foreach ($installedThemes as $theme): ?>
+
+                            <li data-code="<?= $theme['code'] ?>">
+                                <div class="image">
+                                    <img src="<?= $theme['image'] ?>" alt="">
+                                </div>
+                                <div class="details">
+                                    <h4><?= $theme['name'] ?></h4>
+                                    <p><?= e(trans('cms::lang.theme.by_author', ['name' => $theme['author']])) ?></p>
+                                </div>
+                                <button
+                                    type="button"
+                                    class="close"
+                                    aria-hidden="true"
+                                    data-request="onRemoveTheme"
+                                    data-request-data="code: '<?= $theme['dirName'] ?>'"
+                                    data-request-confirm="<?= e(trans('system::lang.themes.remove_confirm')) ?>"
+                                    data-stripe-load-indicator>
+                                    &times;
+                                </button>
+                            </li>
+
+                        <?php endforeach ?>
+                    </ul>
+                <?php endif ?>
+
+            </div>
+
+        </div>
+        <div class="col-md-5">
+
+            <!-- Recommended extras -->
+            <div class="suggested-products-container">
+                <h4 class="section-header"><?= e(trans('system::lang.themes.recommended')) ?></h4>
+                <div class="scroll-panel">
+                    <div
+                        id="suggestedThemes"
+                        class="suggested-products suggested-themes"
+                        data-handler="onGetPopularThemes"
+                        data-view="theme/suggestion"></div>
+                </div>
+            </div>
+
+        </div>
+
+    </div>
+
+</div>
+
+<script type="text/template" data-partial="theme/suggestion">
+    <div class="product">
+        <a
+            data-control="popup"
+            data-handler="onInstallTheme"
+            data-request-data="code: '{{code}}'"
+            href="javascript:;">
+            <div class="image"><img src="{{image}}" alt=""></div>
+            <div class="details">
+                <h5 class="text-overflow">{{code}}</h5>
+                <p>{{description}}</p>
+            </div>
+        </a>
+    </div>
+</script>