Add option to remove subdomain only from DNS allowlist/blocklist

### Prerequisites

### Problem Description

When blocking suspected tracking domains, sometimes it becomes necessary to whitelist a subdomain. Currently, you only have the "remove from blocklist" option. This option removes the entire domain which might be too much in some cases

### Proposed Solution

Add similar domain level unblocking options in an unblock menu similar to the options for blocking domains.


### Alternatives Considered

### Additional Information

As an example, say you are seeing requests to a suspicious domain "google.com" from some app on your phone, (pretend you don't know what google.com is). You realize later that the domain accounts.google.com needs to be unblocked for your app to work, but you still don't trust the whole domain. The easiest way to unblock it is through the DNS logs, but this unblocks the whole domain.