Fixing translation, links, responsiveness, etc. in storymap2

Trying to fix:
* https://github.com/geoadmin/web-storymaps/issues/94
* https://github.com/geoadmin/web-storymaps/issues/91 (betrifft many storymaps)
* https://github.com/geoadmin/web-storymaps/issues/83
* https://github.com/geoadmin/web-storymaps/issues/82
* https://github.com/geoadmin/web-storymaps/issues/99