FIX - scopeID definition in openapi file

[Agnul97]

On swaggerUI sometimes it happens that if you open a certain path/operation you can see, for example, that the scopeID field is not shown with the “_” default value. Furthermore, trying to call the operation inside swagger fails in an infinite loop. Refreshing the page the thing is fixed. This error can be emulated in this swagger UI https://api-qat-1.dev.everyware.io/doc/#/.

Initially, I thought this was a problem regarding the swaggerUI version we use but in the end, after trying to update it to the latest version, I started to realize that maybe there was a problem with the definition of the scopeID in the openAPI.yaml file.

Syntactically, the definition should not be wrong (in fact, for example, is not signaled in the various warnings that swagger shows regarding syntactic problems) but at the same time if I change it as I've done in this PR the problem I exposed above is fixed. I suppose this problem is caused by the fact the the "allOf" operator (https://swagger.io/docs/specification/data-models/oneof-anyof-allof-not/#allof) expects schemas in input, and the "default" operator is not technically a schema. But at the same time, I've seen in other parts of the API definition a similar thing done with other operators that are not "schemas" and the result is not wrong.

In the end, the mod. I've done is AT WORST equivalent to the previous scopeID definition BUT with this mod. the problem I exposed is solved.

[codecov]

Codecov Report

Merging #3907 (10c7650) into develop (76cd70c) will not change coverage.
The diff coverage is n/a.

❗ Current head 10c7650 differs from pull request most recent head 99eb0d1. Consider uploading reports for the commit 99eb0d1 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             develop    #3907   +/-   ##
==========================================
  Coverage      20.52%   20.52%           
  Complexity         6        6           
==========================================
  Files           1945     1945           
  Lines          41660    41660           
  Branches        3946     3946           
==========================================
  Hits            8551     8551           
  Misses         32712    32712           
  Partials         397      397