Use strings in proctoring config default values (#5034)
Use strings in proctoring config default values (#5034)

* Change proctoring config to be strings, since that is what it is rendered as.

edx/configuration,EDUlib/configuration,stvstnfrd/configuration,EDUlib/configuration,appsembler/configuration,edx/configuration,appsembler/configuration,mitodl/configuration,appsembler/configuration,edx/configuration,mitodl/configuration,mitodl/configuration,appsembler/configuration,stvstnfrd/configuration,EDUlib/configuration,arbrandes/edx-configuration,EDUlib/configuration,EDUlib/configuration,arbrandes/edx-configuration,stvstnfrd/configuration,arbrandes/edx-configuration,arbrandes/edx-configuration,mitodl/configuration,edx/configuration,stvstnfrd/configuration,stvstnfrd/configuration,arbrandes/edx-configuration