add a "duplicate" button for proxy hosts in the 3-dot-menu #2813
Description
I switched recently to npm from my nginx setup.
I have to create more than 40 subdomains (proxy hosts) and most of them differ only in the subdomain.
So it would be helpful if there is a "duplicate" button to simply duplicate an entry and change only the subdomain.
So i don't need to configure the IP, Certificate and so on again on every new entry.
What i imagine is i click on an existing entry ... then on the 3-dot-menu in the top right corner ... then "duplicate" ... the same window like "Add Proxy Host" appears with all the prefilled values like i have clicked on "Edit" ... thera i am able to make changes like the subdomain ... and after that i finally click "save" to create a new entry.