Remove unneccessary links in task details

Remove links to feedback and task download on the task details
template. Closes #725
added a new API route to get the dart-configuration information in json format - closes  #657
Merge branch 'develop' of gitlab.trommons.org:solas-match into develop
Rework Asanka's conf solution

Changed from ConfAPI to StaticAPI to make it more general. Other
routes should be added here as well, e.g. statistics. Also fixed
a bug where the site location and the site API were being switched.
Also formatted the function to conform to our guidelines.
Part of #657
Fix type in StaticAPI
Remove pretty print from dart conf API route

Pretty print adds unneccessary characters to make it humand readable.
This is not needed as it will be consumed by a machine.
Fix error handling on project create page

Switch to using try catch mecanisms on the project create page
in dart. Use completers to back propogate errors to the UI. Should
make debugging project create issues easier. Also adds conflict
support to project create API route. Adds a number of strings for
the new errors. Part of #727