refactor: ♻️ refactor isHosted && type clean up (#3290)

* refactor: ♻️ refactor isHosted && type clean up

Change-Id: I4dfbad8a07607432801de78920ce42bf81e46498

* refactor: ♻️ code clean up

Change-Id: I8f487a33d332a2acaff84397a97371b56ace28a1

* feat: 💄 lint

Change-Id: I776b1a5e249bdb542f8e6da7cb2277821cf91094

* feat: ✨ ci type

Change-Id: I486dde7bf60321238e9a394c40ad8cdb8bfc54c8

* feat: some code sugession

Change-Id: I4761d057344b95a98e99068d312a42292977875b

app/components/Subheading.tsx

@@ -2,7 +2,6 @@ import * as React from "react";
 import styled from "styled-components";
 
 type Props = {
-  children: React.ReactNode;
   sticky?: boolean;
 };
 
@@ -34,7 +33,7 @@ const Background = styled.div<{ sticky?: boolean }>`
   z-index: 1;
 `;
 
-const Subheading = ({ children, sticky, ...rest }: Props) => {
+const Subheading: React.FC<Props> = ({ children, sticky, ...rest }) => {
   return (
     <Background sticky={sticky}>
       <H3 {...rest}>