Xray ignores port for DoH/DoHL/DoQL, so valuesToWire deliberately stores none
for an encrypted address and a non-standard port has to go inside the URL. The
form kept offering the field anyway, pre-filled with the 53 from its own
defaults: a port typed there was dropped on save and redrawn as 53 on reopen,
which reads as the panel losing the value.
Render the port field only where it is actually stored. DoT keeps it, since
tls:// is not an encrypted-address scheme for this purpose.
Closes#6403
Sanaei