luci-base and apps: update Spanish translation

Update of the Spanish translation of luci-base and some LuCI applications.

* luci-base
* adblock
* advanced-reboot
* aria2
* banip
* ddns
* firewall
* mjpg-streamer
* mwan3
* ntpc
* simple-adblock
* travelmate
* vpnbypass
* wifischedule
* wireguard

Signed-off-by: Franco Castillo <castillofrancodamian@gmail.com>