Hide zone change for users not in admin group

[Aravindh-Raju]

Fixes #1332

Changes in this pull request:

• Hidden zone change history for non-members in portal. Made restrictions to not access zone change history through api for users of the zone who are not part of the zone's admin group or a support/super user.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.06%. Comparing base (2bfc0e3) to head (7e8c436).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1333   +/-   ##
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  Coverage   92.06%   92.06%           
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  Files         177      177           
  Lines        7915     7918    +3     
  Branches      236      239    +3     
=======================================
+ Hits         7287     7290    +3     
  Misses        628      628           

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[nspadaccino]

Currently normal users aren't able to access private zones owned by other groups in the portal and API at all, so this change may be redundant

[Aravindh-Raju]

Currently normal users aren't able to access private zones owned by other groups in the portal and API at all, so this change may be redundant

This is for users who have ACL rules applied. Even if they are applied a read only ACL rule, they can still see zone details and zone changes while they should only see records and record changes and not anything related to zones. As ACL rules are only for records and even with delete ACL rule applied they can't make any changes to zones. So I thought of hiding those from them.

[arpit4ever]

LGTM