Fixed dashboard navbar buttons being visible in fullscreen, fixes #15450

public/sass/components/_navbar.scss

@@ -46,9 +46,8 @@
 
   .navbar-button--add-panel,
   .navbar-button--star,
-  .navbar-button--tv,
-  .navbar-buttons--close {
-    display: flex;
+  .navbar-button--tv {
+    display: none;
   }
 }