diff --git a/src/AppMenu.vue b/src/AppMenu.vue
index 8f73df6..17db6ad 100644
--- a/src/AppMenu.vue
+++ b/src/AppMenu.vue
@@ -22,7 +22,7 @@
 
 <template>
   <nav class="app-menu show">
-    <ul class="app-menu-main" v-if="apps">
+    <ul class="app-menu-main" v-if="apps !== null">
       <li v-for="app in mainAppList()"
         :key="app.id"
         :data-app-id="app.id"
@@ -40,7 +40,7 @@
         </a>
       </li>
     </ul>
-    <NcActions class="app-menu-more" :aria-label="t('core', 'More apps')" v-if="apps">
+    <NcActions class="app-menu-more" :aria-label="t('core', 'More apps')" v-if="apps !== null">
       <NcActionLink v-for="app in popoverAppList()"
         :key="app.id"
         :aria-label="appLabel(app)"
@@ -77,12 +77,11 @@ export default {
   },
   mounted() {
     const ncApps = loadState('core', 'apps', {})
-    const that = this
-    that.apps = {}
+    this.apps = {}
 
     Array.from(window.topMenuApps).forEach((id) => {
       if (ncApps.hasOwnProperty(id)) {
-        that.apps[id] = ncApps[id]
+        this.apps[id] = ncApps[id]
       }
     })
 
diff --git a/templates/css/stylesheet.php b/templates/css/stylesheet.php
index 379fb42..dd633d9 100644
--- a/templates/css/stylesheet.php
+++ b/templates/css/stylesheet.php
@@ -1,116 +1,116 @@
 :root {
-    <?php foreach ($_['vars'] as $key => $value): ?>
-        <?php if ($key === 'opener'): ?>
-            --side-menu-<?php echo $key ?>: url('<?php print_unescaped(image_path('side_menu', $value.'.svg')); ?>');
-        <?php else: ?>
-            --side-menu-<?php echo $key ?>: <?php echo $value ?>;
-        <?php endif; ?>
-    <?php endforeach; ?>
+  <?php foreach ($_['vars'] as $key => $value): ?>
+    <?php if ($key === 'opener'): ?>
+      --side-menu-<?php echo $key ?>: url('<?php print_unescaped(image_path('side_menu', $value.'.svg')); ?>');
+    <?php else: ?>
+      --side-menu-<?php echo $key ?>: <?php echo $value ?>;
+    <?php endif; ?>
+  <?php endforeach; ?>
 }
 
 <?php if (empty($_['top-menu-apps']) && empty($_['top-side-menu-apps'])): ?>
-    #appmenu {
-        display: none;
-    }
+  #appmenu {
+    display: none;
+  }
 
-    #appmenu + nav {
-        display: none;
-    }
+  #appmenu + nav {
+    display: none;
+  }
 <?php else: ?>
-    .app-hidden {
-        opacity: 0;
-    }
+  .app-hidden {
+    opacity: 0;
+  }
 <?php endif; ?>
 
 <?php if ($_['opener-only']): ?>
-    #nextcloud {
-        display: none;
-    }
+  #nextcloud {
+    display: none;
+  }
 <?php endif; ?>
 
 <?php if (!$_['display-logo']): ?>
-    .side-menu-logo {
-        display: none;
+  .side-menu-logo {
+    display: none;
+  }
+
+  .side-menu-header {
+    height: 50px;
+  }
+
+  .side-menu-apps-list {
+    height: calc(100vh - 49px);
+    top: 49px;
+  }
+
+  #side-menu.hide-opener .side-menu-header {
+    visibility: hidden;
+  }
+
+  <?php if ($_['size-text'] === 'hidden'): ?>
+    #side-menu, .side-menu-apps-list {
+      <?php if ($_['size-icon'] === 'big'): ?>
+        width: 55px;
+      <?php else: ?>
+        width: 52px;
+      <?php endif; ?>
     }
 
-    .side-menu-header {
-        height: 50px;
+    #side-menu .side-menu-opener {
+      <?php if ($_['size-icon'] === 'big'): ?>
+        margin-left: 1px;
+      <?php else: ?>
+        margin-left: 0px;
+      <?php endif; ?>
     }
-
-    .side-menu-apps-list {
-        height: calc(100vh - 49px);
-        top: 49px;
-    }
-
-    #side-menu.hide-opener .side-menu-header {
-        visibility: hidden;
-    }
-
-    <?php if ($_['size-text'] === 'hidden'): ?>
-        #side-menu, .side-menu-apps-list {
-            <?php if ($_['size-icon'] === 'big'): ?>
-                width: 55px;
-            <?php else: ?>
-                width: 52px;
-            <?php endif; ?>
-        }
-
-        #side-menu .side-menu-opener {
-            <?php if ($_['size-icon'] === 'big'): ?>
-                margin-left: 1px;
-            <?php else: ?>
-                margin-left: 0px;
-            <?php endif; ?>
-        }
-    <?php endif; ?>
+  <?php endif; ?>
 <?php endif; ?>
 
 <?php if ($_['size-icon'] === 'hidden'): ?>
-    .side-menu-app-icon {
-        display: none;
-    }
+  .side-menu-app-icon {
+    display: none;
+  }
 <?php elseif ($_['size-icon'] === 'small'): ?>
-    .side-menu-app-icon svg {
-        width: 15px;
-        height: 15px;
-    }
+  .side-menu-app-icon svg {
+    width: 15px;
+    height: 15px;
+  }
 
-    img.side-menu-app-icon {
-        width: 15px;
-        height: 15px;
-    }
+  img.side-menu-app-icon {
+    width: 15px;
+    height: 15px;
+  }
 <?php elseif ($_['size-icon'] === 'normal'): ?>
-    .side-menu-app-icon svg {
-        width: 20px;
-        height: 20px;
-    }
+  .side-menu-app-icon svg {
+    width: 20px;
+    height: 20px;
+  }
 
-    img.side-menu-app-icon {
-        width: 20px;
-        height: 20px;
-    }
+  img.side-menu-app-icon {
+    width: 20px;
+    height: 20px;
+  }
 <?php elseif ($_['size-icon'] === 'big'): ?>
-    .side-menu-app-icon svg {
-        width: 23px;
-        height: 23px;
-    }
+  .side-menu-app-icon svg {
+    width: 23px;
+    height: 23px;
+  }
 
-    img.side-menu-app-icon {
-        width: 23px;
-        height: 23px;
-    }
+  img.side-menu-app-icon {
+    width: 23px;
+    height: 23px;
+  }
 <?php endif; ?>
 
 <?php if ($_['size-text'] === 'hidden'): ?>
-    .side-menu-app-text {
-        display: none;
-    }
+  .side-menu-app-text {
+    display: none;
+  }
 <?php elseif ($_['size-text'] === 'small'): ?>
-    .side-menu-app-text {
-        font-size: 12px;
-    }
+  .side-menu-app-text {
+    font-size: 12px;
+  }
 <?php elseif ($_['size-text'] === 'big'): ?>
-    .side-menu-app-text {
-        font-size: 16px;
-    }
+  .side-menu-app-text {
+    font-size: 16px;
+  }
 <?php endif; ?>