fix(combobox): clip menu inner shadow on shrunk scrollable menu

Author: yordan-st

packages/pluggableWidgets/combobox-web/src/ui/Combobox.scss

@@ -29,7 +29,7 @@ $cb-skeleton-dark: #d2d2d2;
         display: flex;
         flex-direction: column;
         border-radius: var(--dropdown-border-radius, $cb-menu-border-radius);
-        padding: var(--dropdown-outer-padding, $cb-menu-outer-padding) 0 0;
+        overflow: hidden;
         z-index: 25;
         box-shadow: 0px 0px var(--dropdown-outer-padding, $cb-menu-outer-padding) 0px
             var(--shadow-color-border, $cb-box-shadow-color);
@@ -44,9 +44,6 @@ $cb-skeleton-dark: #d2d2d2;
             min-height: 0;
             max-height: 100%;
             overflow-y: auto;
-            &:last-child {
-                margin-bottom: var(--dropdown-outer-padding, $cb-menu-outer-padding);
-            }
         }
         &-lazy-scroll {
             background: