Remove redundant html templates from `/thaliawebsite/templates/singlepages/`
One-sentence description
Remove redundant html templates from /thaliawebsite/templates/singlepages/
Why?
They are redundant, since they are also in /singlepages/templates and these are the ones that are used.
Current implementation
It appears as if the translations are still in /thaliawebsite though, so it would probably be nice to move these.