quick copy variable value

frontend/src/pages/settings/variables.tsx

@@ -1,5 +1,5 @@
 import { ExportButton } from "@components/export";
-import { ConfirmButton, TextUpdateMenu } from "@components/util";
+import { ConfirmButton, CopyButton, TextUpdateMenu } from "@components/util";
 import {
   useInvalidate,
   useRead,
@@ -108,6 +108,7 @@ export const Variables = () => {
             ),
             cell: ({ row }) => {
               return (
+                <div className="flex items-center gap-2">
                   <Card
                     className="px-3 py-2 hover:bg-accent/50 transition-colors cursor-pointer w-full"
                     onClick={() => {
@@ -128,6 +129,8 @@ export const Variables = () => {
                       {row.original.value || "Set value"}
                     </div>
                   </Card>
+                  <CopyButton content={row.original.value} />
+                </div>
               );
             },
           },