[57003] OpenProject Dark Mode: selection colour of table rows (#16398)

* use the same variable for hover bg-color in notification center and WP table and set the color border and bf-color for checked and hover effect in wp table row

* undo border color changes

frontend/src/global_styles/layout/work_packages/_table.sass

@@ -71,7 +71,10 @@ body[class*="router--"]
   div.row-hovered
     // Use important to override the background styles from __hl classes
     // That also have to be important (cf. 30863)
-    background: var(--bgColor-muted) !important
+    background: var(--bgColor-neutral-muted) !important
+
+    &.-checked
+      background-color: hsl(from var(--selection-bgColor) h calc(s - 30) l) !important
 
 // Left part of the split view
 // == flex container for (table|timeline)