running dkron webui behind a reverseproxy on a custom pathprefix

[terefang]

Is your feature request related to a problem? Please describe.

• i need to run dkron web ui behind a reverse proxy
• the hardcoded default prefix for dkron is / with /ui for the webui and /v1 for the api

Describe the solution you'd like

• i would like to specifiy an option for a path prefix added eg. {prefix}/ui and {prefix}/v1

Describe alternatives you've considered
i have considered nginx and caddy configs as reverse proxy but none of them is able to properly working to hide dkron behind a prefix