fix: updated policy to limit to allow change only policy "priority" and "isactive"

[appmdev]

Description

Policies had large set of properties allowed to be configurable by the end-use. Now end-user can update only two properties in the policy definition: IsActive, Priority

Fixes # End-user can update only two properties in the policy definition: IsActive, Priority.

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)

What has been changed?

• Fix: End-user can update only two properties in the policy definition: IsActive, Priority

Updated validation for these property.

How Has This Been Tested?

• [x] Test A: The values of parameters "isActive" and "Priority" was set to nonvalid => result: in response apropriate error message was displayed.
• [x] Test B: The value of parameter "isActive" was deleted; => result: the default value was set and updated.
• [x] Test C: The other values of parameters was changed/omited; => result: the update did not make any changes on other parmeters.
• [x] Test D: The "isActive" and "priority" was updated with valid values; => result: updated successfuly only required parameters.

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my code
• [x] My changes generate no new warnings

[Artonus]

@appmdev the code looks good to me. Please correct the PR title to match the conventional commits specification. After that please re-run failed checks. If all will pass, you can merge :)