Enhancement: Trying to open multiple files in new tab without being redirected instantly in Lectures page

[laxerhd]

Is your feature request related to a problem?

If you try to open multiple files on the “Lectures” page, you are always redirected before you can open more than one file (“Download” button). This can be frustrating, especially if you don't want to download the merged version but only want to open a few.

Describe the solution you'd like

Change the button to an anchor tag, so the user has the possibility to right/middle click the Download button.

Describe alternatives you've considered

No response

Additional context

I would like to make a PR for that :D
Similar to #9935.