add 'top-menu-mouse-over-hidden-label' as window property and use it in the AppMenu component

lib/Controller/JsController.php

@@ -171,6 +171,10 @@ class JsController extends Controller
             'avatar' => $avatar,
             'top-menu-apps' => $topMenuApps,
             'top-side-menu-apps' => $topSideMenuApps,
+            'top-menu-mouse-over-hidden-label' => $this->config->getAppValueBool(
+                'top-menu-mouse-over-hidden-label',
+                '0'
+            ),
             'target-blank-apps' => $targetBlankApps,
             'settings' => $settings,
             'logo' => $this->themingDefaults->getLogo(),

src/AppMenu.vue

@@ -101,6 +101,7 @@ export default {
     })
 
     this.targetBlankApps = window.targetBlankApps
+    this.hiddenLabels = window.topMenuAppsMouseOverHiddenLabel
     this.observer = new ResizeObserver(this.resize)
     this.observer.observe(this.$el)
     this.resize()

templates/js/script.php

@@ -27,6 +27,7 @@ if ($_['always-displayed']) {
   window.topMenuApps = <?php echo json_encode($_['top-menu-apps']), "\n"; ?>
   window.topSideMenuApps = <?php echo json_encode($_['top-side-menu-apps']), "\n"; ?>
   window.menuAppsOrder = <?php echo json_encode($_['apps-order']), "\n"; ?>
+  window.topMenuAppsMouseOverHiddenLabel = <?php echo json_encode($_['top-menu-mouse-over-hidden-label']), "\n"; ?>
 
   <?php if ($display === 'big-menu'): ?>
     sideMenu.setAttribute('data-bigmenu', '1')