8/UI/learning-sequence-kiosk footer-position 42025

[catenglaender]

https://mantis.ilias.de/view.php?id=42025

Issue

Odd placement of footer on learning sequence kiosk content pages.

Changes

Learning Sequence html template now uses mainspacekeeper with container-fluid like most other mainspacekeepers. instead of col-sm-12 for padding and width.