Use server actions instead of client-side API calls

apps/link/app/(main)/_components/SetupModeWarning.tsx

@@ -0,0 +1,29 @@
+"use client";
+
+import { FC } from "react";
+import { Box } from "@mui/material";
+
+interface SetupModeWarningProps {
+  setupModeActive: boolean;
+}
+
+export const SetupModeWarning: FC<SetupModeWarningProps> = ({
+  setupModeActive,
+}) =>
+  setupModeActive ? (
+    <Box
+      sx={{
+        backgroundColor: "red",
+        textAlign: "center",
+        zIndex: 10000,
+        position: "absolute",
+        width: "100vw",
+        top: 0,
+        left: 0,
+      }}
+    >
+      <Box component="h2" sx={{ color: "white", m: 0, p: 0 }}>
+        Setup Mode Active
+      </Box>
+    </Box>
+  ) : null;