fix(AnalyticalTable): show expand icon in Quartz theme (UI5#8716)

Fixes UI5#8689

Author: Lukas742

packages/main/src/components/AnalyticalTable/AnalyticalTable.module.css

@@ -519,18 +519,22 @@
   height: var(--_ui5wcr-AnalyticalTableExpandButtonHeight);
   margin-inline-end: 0.125rem;
   flex-shrink: 0;
+  display: flex;
+  align-items: center;
 }
 
 .expandableIcon {
   color: var(--sapContent_IconColor);
-  width: 100%;
-  height: 100%;
+  width: var(--_ui5wcr-AnalyticalTableExpandIconHeight);
+  height: var(--_ui5wcr-AnalyticalTableExpandIconHeight);
+  padding: 0.375rem;
+  box-sizing: content-box;
   display: flex;
   align-items: center;
   &::part(root) {
-    padding: 0.375rem;
-    width: var(--_ui5wcr-AnalyticalTableExpandIconHeight);
-    height: var(--_ui5wcr-AnalyticalTableExpandIconHeight);
+    padding: 0;
+    width: 100%;
+    height: 100%;
   }
 }