[Frontend] s-status-pending sanding and polishing

open #431
Cleanups, comment removal; Inspector location items
with s-status-pending tweaked;
Fixed grid-item background class;

platform/commonUI/general/res/sass/_mixins.scss

@@ -300,7 +300,7 @@
 	@include desktop {
 		@if $bgHov != none {
 			&:not(.disabled):hover {
-				background: $bgHov;
+				@include background-image($bgHov);
 				>.icon {
 					color: lighten($ic, $ltGamma);
 				}