fix(popover): restores drop shadow for nested popovers

Author: cdransf

.changeset/gold-cats-hide.md

@@ -0,0 +1,5 @@
+---
+"@spectrum-css/popover": minor
+---
+
+Restores drop shadow for nested popovers

components/popover/index.css

@@ -23,7 +23,7 @@
 	/* --spectrum-popover-border-color-default: var(--spectrum-popover-border-color); */
 	--spectrum-popover-border-color-rgb: var(--spectrum-gray-200-rgb);
 	--spectrum-popover-border-transparency: var(--spectrum-popover-border-opacity);
-	--spectrum-popover-border-color-with-transparency: rgba(var(--spectrum-popover-border-color-rgb), var(--spectrum-popover-border-transparency));
+	--spectrum-popover-border-color-with-transparency: rgb(var(--spectrum-popover-border-color-rgb), var(--spectrum-popover-border-transparency));
 
 	/* popover inner padding */
 	--spectrum-popover-content-area-spacing: var(--spectrum-popover-edge-to-content-area);
@@ -94,11 +94,6 @@
 	@extend %spectrum-overlay--open;
 }
 
-/* prevent nested popovers from affecting each others drop shadow filters */
-.spectrum-Popover * {
-	--mod-popover-filter: none;
-}
-
 /* position naming - first position term is popover position, second term is source position */
 /* example: --top-left = popover is to top and source is to left */