fix issue with empty cat

appinfo/info.xml

@@ -15,7 +15,7 @@ You can report a bug or request a feature by opening an issue.
 ]]></description>
     <licence>agpl</licence>
     <author mail="contact@deblan.fr" homepage="https://www.deblan.io/">Simon Vieille</author>
-    <version>1.8.0-rc1</version>
+    <version>1.8.0-rc2</version>
     <namespace>SideMenu</namespace>
     <category>customization</category>
     <website>https://gitnet.fr/deblan/side_menu</website>

lib/Controller/NavController.php

@@ -188,7 +188,11 @@ class NavController extends Controller
         }
 
         foreach ($items as $category => $value) {
-            ksort($items[$category]['apps']);
+            if (empty($items[$category]['apps'])) {
+                unset($items[$category]);
+            } else {
+                ksort($items[$category]['apps']);
+            }
         }
 
         usort($items, function ($a, $b) {

src/SideMenuBig.vue

@@ -61,13 +61,13 @@ export default {
                 .then(function(response) {
                     that.items = response.data.items
 
-					let apps = []
+                    let apps = []
 
-					for (let category of that.items) {
-						for (let app of category.apps) {
-							apps.push(app)
-						}
-					}
+                    for (let category of that.items) {
+                        for (let app of category.apps) {
+                            apps.push(app)
+                        }
+                    }
 
                     jQuery('body').trigger('side-menu.apps', [apps])
                 });