Trim down data loaded into browsers about zdravniki

[lukarenko]

@stefanb yes, we should remove id if not used in web - just causes larger diff on updates

[stefanb]

@jalezi can you confirm that we aren't using id field from doctors.csv?

[jalezi]

@jalezi can you confirm that we aren't using id field from doctors.csv?

It needs some changes.. But this is easy fix. Replacing with something unique as doctor.key.

I'll do it right now. There is a dedicated branch, right?

[jalezi]

@stefanb I also have to change 'doctorsContext.js`. This will take some time. I will explain a little bit later.