style: fix scss lint issue

type: declaration-block-no-redundant-longhand-properties

Author: cotes2020

_sass/addon/commons.scss

@@ -1154,10 +1154,7 @@ $sidebar-display: 'sidebar-display';
 #mask {
   display: none;
   position: fixed;
-  top: 0;
-  right: 0;
-  bottom: 0;
-  left: 0;
+  inset: 0 0 0 0;
   height: 100%;
   width: 100%;
   z-index: 1;