fix: correct issue in proxy:ports-set invocation

plugins/proxy/subcommands/ports-set

@@ -6,13 +6,13 @@ source "$PLUGIN_AVAILABLE_PATH/proxy/functions"
 
 proxy_ports_set_cmd() {
   declare desc="add proxy port mappings from an app"
-  local cmd="proxy:add"
+  local cmd="proxy:set"
   local APP="$2"
   verify_app_name "$APP"
   shift 2
 
   set_proxy_ports "$APP" "$@"
-  plugn trigger post-proxy-ports-update "$APP" "add"
+  plugn trigger post-proxy-ports-update "$APP" "set"
 }
 
 proxy_ports_set_cmd "$@"