[homarr_domain] does not play well with subdomains

[ColinHebert]

Description

I currently have the following subdomain: myMachine.domain.tld
Under this domain I have my various services including homarr under homarr.myMachine.domain.tld

I would like to make use of the [homarr_domain] replacement in the URL to make my life easier for example for grafana have grafana.[homarr_domain] rather than grafana.myMachine.domain.tld.

Unfortunately, as it's set now, homarr_domain is set to domain.tld rather than myMachine.domain.tld

It would be nice if homarr_domain played well when in a subdomain.

Priority

Low (Nice-to-have)

[github-actions]

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