Squashed commit of the following:

commit ebba74fa
Author: Daniel Friesel <derf@finalrewind.org>
Date:   Fri Oct 28 22:50:52 2022 +0200

    update cpanfile.snapshot

commit a6248cca
Author: Daniel Friesel <derf@finalrewind.org>
Date:   Fri Oct 28 22:30:38 2022 +0200

    cpanfile: requires T-S-DE-HAFAS

commit c4b83577
Author: Daniel Friesel <derf@finalrewind.org>
Date:   Fri Oct 28 22:28:41 2022 +0200

    map: handle cancelled arrivals / stops

commit 70bbd2bd
Author: Daniel Friesel <derf@finalrewind.org>
Date:   Thu Oct 27 23:01:24 2022 +0200

    transport.rest is no longer in use

commit d43e9857
Author: Daniel Friesel <derf@finalrewind.org>
Date:   Thu Oct 27 22:59:28 2022 +0200

    about: map is now served via T-S-DE-HAFAS

commit 382262e2
Author: Daniel Fr...