I changed what I think is needed and I have done manual testing on this.
I tried to keep the changes to a minimun.
The changes are approx:
* HTML output now includes the provider name in parenthesis.
* I'm not versed in bootstrap, should the output group providers in a
* table?
* PUT is only enabled on /api/web.
* GET on /api returns a map containing all providers configuration
* GET on /api/{provider} will return the config as before on that
* provider.