Update document title via Page component

client/src/components/BoardPage/BoardPage.jsx

@@ -33,8 +33,9 @@ export class BoardPage extends React.Component {
   }
 
   render() {
+    const { board } = this.props;
     return (
-      <Page>
+      <Page title={`${board ? (board.title + ' - ') : ''}GenGitKan`}>
         <div className="container is-fluid">
           {this.renderBoard()}
         </div>