chore: add margin on version badge

Author: yeonjuan

src/components/Header.tsx

@@ -8,7 +8,7 @@ export const Header: FC = () => (
   <Navbar bg="light">
     <Navbar.Brand>
       TypeScript ESLint Demo
-      <Badge variant="secondary">v{pkgJson.version}</Badge>
+      <Badge variant="secondary" className="version-badge">v{pkgJson.version}</Badge>
     </Navbar.Brand>
 
     <Navbar.Collapse className="justify-content-end">

src/css/header.css

@@ -2,15 +2,12 @@ header {
   padding: 10px;
 }
 
-header h2 {
-  display: inline;
-  margin: 0 0 10px;
-  padding: 0;
+.version-badge {
+  margin-left: 10px;
 }
 ul {
   margin-bottom: 0;
 }
-
 li {
   list-style: none;
 }