Make the Home Feed tabs sticky

src/features/home-timeline/index.tsx

@@ -15,6 +15,7 @@ const HomeTimeline = () => {
 
   return (
     <>
+      <div className='sticky top-11 z-50 bg-white black:bg-black dark:bg-primary-900 lg:top-0'>
         <Tabs
           items={[
             {
@@ -32,6 +33,7 @@ const HomeTimeline = () => {
           ]}
           activeItem={match.path}
         />
+      </div>
 
       <Suspense fallback={<div className='p-4 text-center'><FormattedMessage id='loading_indicator.label' defaultMessage='Loading…' /></div>}>
         <Switch>