luci-app-https-dns-proxy: update to 2023-10-25-5

* no longer "require uci" in js files
* use L.resolveDefault when loading configs
* improve DNSMASQ config update selection user experience
* switch from uci.get to L.uci.get
* small code improvement of RPCD script

Signed-off-by: Stan Grishin <stangri@melmac.ca>