create TitleBox.js

+import React from "react";
+import styled from "styled-components";
+
+const TitleBox = styled.div`
+  display: flex;
+  flex-direction: column;
+  font-size: 30px;
+  color: white;
+`;
+
+const Title = styled.span``;
+
+export default () => {
+  return (
+    <TitleBox>
+      <Title>KhuChat</Title>
+    </TitleBox>
+  );
+};