implement game delete confirmation modal

src/ui/React/ConfirmationModal.tsx

@@ -0,0 +1,28 @@
+import React from "react";
+import { Modal } from "./Modal";
+
+import Button from "@material-ui/core/Button";
+import Typography from "@material-ui/core/Typography";
+
+interface IProps {
+    open: boolean;
+    onClose: () => void;
+    onConfirm: () => void;
+    confirmationText: string;
+  }
+  
+  export function ConfirmationModal(props: IProps): React.ReactElement {
+    return (
+      <Modal open={props.open} onClose={props.onClose}>
+        <>
+          <Typography>
+            {props.confirmationText}
+          </Typography>
+          <Button onClick={() => {
+            props.onConfirm();
+          }}>Confirm</Button>
+        </>
+      </Modal>
+    );
+  }
+