feat: inform user about automatic reassignments or reset selections

assets/styles/_components.css

@@ -3,4 +3,5 @@
 @import "components/button.css";
 @import "components/menu.css";
 @import "components/tooltip.css";
-@import "components/table-responsive.css";
+@import "components/table-responsive.css";
+@import "components/toast.css";