Feature request: add a config option like base url

[bibugo]

i installed AdGuardHome in my vps with my web site, in the past version, i can proxy to
AdGuardHome listen on localhost with a subfolder url , but in the lastest version, the login.html and control/ etc. is fixed in root url, and it conflict with my web site. can i get a option to set AdGuardHome access with a subfolder? or it‘s ok just let all url relatively but not absolutely fixed to root url / . thanks.

[szolin]

dup: #1085