feat: Links should expose valid port assigned to ingress controller

[ullbergm]

Feature Request

Describe the Feature Request

Currently automatically generated links point into 443 port (via https prefix). If there's more ingress controllers, they use different ports. So some links are incorrect, because misses valid port

Describe Preferred Solution

Links should be created with valid port. As we can have multiple ingress controllers supporting the same ingress, we don't know which port to choose, so the easiest way would be to allow to override default 443 port via annotation like:

startpunkt.ullberg.us/port: "2000"

Describe Alternatives

• Can we figure out the port based on the ingress controller (and how does this translate to other ingress types like Routes or Gateway-API?)?
• What about a global port override?

Related Code

Additional Context

Based on @Marx2 request for Hajimari (toboshii/hajimari/issues/113)
Also @PrymalInstynct request for Hajimari (toboshii/hajimari/issues/28)

[Marx2]

maybe sth like:
hajimari.io/port-override: 8080