[TYPO3-core] RFC: Fix some broken media relations

[Sebastian Kurfuerst]

Hi Michael,
> I think you should not hardcode "typo3/" because people may want to rename
> it. Can you change that please?
>   
If I see it correctly, it is only hardcoded in the static template HTML
files, so that are the predefined site-templates. I don't think changing
them makes sense, as it involves a typoscript marker - and honestly -
people using standard templates won't change the typo3 folder to
something else ;)

Greets, Sebastian