Exclude lists: allow also domains without TLD

[DL6ER]

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My previous domain validation scheme requires a TLD to be set (e.g. pi-hole.net or even pi.hole). With this PR, local domain names are not enforced to have a TLD (e.g. raspberrypi).

This template was created based on the work of udemy-dl.

[AzureMarker]

Approved