[Glitch] Always display tab navigation on local/federated timeline even when empty

Port 90b64c0069 to glitch-soc

app/javascript/flavours/glitch/components/status_list.js

@@ -25,7 +25,7 @@ export default class StatusList extends ImmutablePureComponent {
     prepend: PropTypes.node,
     alwaysPrepend: PropTypes.bool,
     emptyMessage: PropTypes.node,
-    timelineId: PropTypes.string,
+    timelineId: PropTypes.string.isRequired,
   };
 
   static defaultProps = {

app/javascript/flavours/glitch/features/community_timeline/index.js

@@ -131,6 +131,7 @@ export default class CommunityTimeline extends React.PureComponent {
 
         <StatusListContainer
           prepend={headline}
+          alwaysPrepend
           trackScroll={!pinned}
           scrollKey={`community_timeline-${columnId}`}
           shouldUpdateScroll={this.shouldUpdateScroll}

app/javascript/flavours/glitch/features/public_timeline/index.js

@@ -131,6 +131,7 @@ export default class PublicTimeline extends React.PureComponent {
 
         <StatusListContainer
           prepend={headline}
+          alwaysPrepend
           timelineId={`public${onlyMedia ? ':media' : ''}`}
           onLoadMore={this.handleLoadMore}
           trackScroll={!pinned}