[Editor] Remove useless sidebar css

Author: calixteman

web/sidebar.css

@@ -24,7 +24,6 @@
     0 2px 6px 0 light-dark(rgb(0 0 0 / 0.1), rgb(0 0 0 / 0.4));
   --sidebar-border-radius: 8px;
   --sidebar-padding: 5px;
-  --sidebar-extra-width: 0px;
   --sidebar-min-width: 180px;
   --sidebar-max-width: 632px;
   --sidebar-width: 239px;