Option to add disallowed domains option per client

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### Prerequisites

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- [x] I am running the latest version
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### Problem Description
Disallowed domain option in DNS Settings —> Access Settings is a very useful feature to hide noisy DNS requests spamming the DNS log. Currently no support to **_define disallowed domains per client_**. However this feature can be super useful. For example, some of my IoT devices query google.com every interval of seconds. I can block google.com for the specific client but that blocking still flood the blocked domains statistics. Clearly I can not simply add google.com to disallowed domain as other clients need access to that domain.

### Proposed Solution
Please consider adding option of disallowed domains option per client, in similar syntax as blocked domains per client