[configurator] Buttons don't do anything

[svenefftinge]

When looking at the configurator of a git-configured project, the "Run Prebuild" button is disabled.
Also, the "Open Workspace" button doesn't do anything.

[jankeromnes]

Thanks for the feedback @svenefftinge!

Please note that the buttons in the Configurator are being heavily reworked in #5474

[svenefftinge]

does it mean this is solved then? in that case please assign the issue (and all others that are reflected in your PR).