chore: remove NewRoomIntro

Author: florianduros

apps/web/res/css/_components.pcss

@@ -281,7 +281,6 @@
 @import "./views/rooms/_MemberTileView.pcss";
 @import "./views/rooms/_MessageComposer.pcss";
 @import "./views/rooms/_MessageComposerFormatBar.pcss";
-@import "./views/rooms/_NewRoomIntro.pcss";
 @import "./views/rooms/_NotificationBadge.pcss";
 @import "./views/rooms/_OverflowTile.pcss";
 @import "./views/rooms/_PinnedEventTile.pcss";