feat(pageLayout): apply basic strict typing

src/app/components/hocs/pageLayout.js

@@ -1,14 +1,10 @@
-import Layout from '@/components/core/Layout/Layout';
+// @flow strict
+import type { AbstractComponent } from 'react';
 
+function pageLayout<Config: {}>(
+  Component: AbstractComponent<Config>
+): AbstractComponent<Config> {
+  return Component;
+}
 
-function withSubscription(WrappedComponent) {
-  // ...and returns another component...
-  return class extends React.Component {
-
-    render() {
-      // ... and renders the wrapped component with the fresh data!
-      // Notice that we pass through any additional props
-      return <WrappedComponent data={this.state.data} {...this.props} />;
-    }
-  };
-}
+export default pageLayout;