Application URL setting to apply to link URL too

[bensaysso]

Hopefully a simple request:

I have set my custom URL in "Application URL" and this works to create the base URL for links in email notifications. However, this does not apply to the copy link that is created when I do a simple upload and share.

For example, I'm on my home network accessing Erugo from http://localhost:9998, then when the link is created, it says http://localhost:9998/shares/billowing-dream-broad-cherry instead of https://mydomain.com/shares/billowing-dream-broad-cherry

If I had dev skills beyond Claude Code, I'd offer a PR, but I don't want to add AI slop to such a well-running program. Thank you for building Erugo and considering this update!