Fix #4 selected lines in "go to" dropdown menu

rsthemes/nord-polar-night-aurora.rstheme

   color: #d8dee9 !important;
 }
 
+.popupMiddleCenter .item.item-selected, .menuPopupMiddleCenter .item.item-selected, .suggestPopupMiddleCenter .item.item-selected {
+  color: #2e3440 !important;
+  background: #d8dee9 !important;
+}
+
 .themedPopupPanel {
   border: solid 1px #46597c;
 }

rsthemes/oceanic-plus.rstheme

   color: #D8DEE9 !important;
 }
 
+.popupMiddleCenter .item.item-selected, .menuPopupMiddleCenter .item.item-selected, .suggestPopupMiddleCenter .item.item-selected {
+  color: #1B2B34 !important;
+  background: #D8DEE9 !important;
+}
+
 .themedPopupPanel {
   border: solid 1px #4F5B66;
 }

rstudio/_rstudio-dark.scss

 .popupMiddleCenter, .menuPopupMiddleCenter, .suggestPopupMiddleCenter {
 		 background: $ui-completions-background !important;
 		 color: $ui-completions-color !important;
+		 
+		 .item.item-selected {
+  		 color: $ui-completions-background !important;
+  		 background: $ui-completions-color !important;
+		 }
 }
 .themedPopupPanel {
 	border: solid 1px $ui-completions-border;