appropriate transit layer for travel mode map context

[hadekoyaDCP]

it would be great when travel modes are selected, the appropriate transportation network shows. For example, bike travel mode should trigger the bike route layer and remove subway transit.

[chriswhong]

I need to do a bit more research to figure out if OTP is actually prioritizing roads with bike lanes by default, or if that is something we need to enable.

[chriswhong]

We can do the same for bus routes, but that might make the map a bit too cluttered IMHO