Update route panel add background darkenings

Adds warnings (with dummy data) to route panel and makes the layout more closely resemble the design.
Currently the warning icon appear beside their step without animations. There is a slight "flickering" due to how the Bootstrap expansion hides all content outside of its box during the expansion.
Adds intermediate stops to bus, tram, subway, rail and ferry routes.
Adds background darkening behind sidebar and personalisation menu.