add upload button for fav words

src/views/Options/DownloadButton.js

@@ -0,0 +1,27 @@
+import FileDownloadIcon from "@mui/icons-material/FileDownload";
+import Button from "@mui/material/Button";
+
+export default function DownloadButton({ data, text, fileName }) {
+  const handleClick = (e) => {
+    e.preventDefault();
+    if (data) {
+      const url = window.URL.createObjectURL(new Blob([data]));
+      const link = document.createElement("a");
+      link.href = url;
+      link.setAttribute("download", fileName || `${Date.now()}.json`);
+      document.body.appendChild(link);
+      link.click();
+      link.remove();
+    }
+  };
+  return (
+    <Button
+      size="small"
+      variant="outlined"
+      onClick={handleClick}
+      startIcon={<FileDownloadIcon />}
+    >
+      {text}
+    </Button>
+  );
+}