Fixed user defined theme color for conn lost dialog

web/desktop.system

@@ -4973,6 +4973,9 @@
             //List menu theme color bar
             $("#listMenu").find(".searchBar").css("border-bottom", "2px solid " + newThemeColor);
             $("#volumebar").css("background-color", newThemeColor);
+
+            //Connection lost notification css
+            $("#connectionLost").find(".ts.card").css("background-color", hexToRgbA(newThemeColor, 0.5));
         }
 
         //Load the user define theme color to overwrite the default color if exists