Two fixes:
* Use the encoded word for searches in `<audio>` tags as well as simple links.
* Ignore the case is the Urls. Doing it case-sensitive was kind-of on purpose, but i guess even for German words that differ only in capitalization sound the same.
Merge branch 'develop' into ospalh-special-develop
ce a menu name
Merge branch 'develop' into ospalh-special-develop