finish lo-ditching and update deps

sites/rtp.pt/rtp.pt.config.js

@@ -1,4 +1,3 @@
-const _ = require('lodash')
 const dayjs = require('dayjs')
 const utc = require('dayjs/plugin/utc')
 const timezone = require('dayjs/plugin/timezone')
@@ -62,5 +61,5 @@ function parseItems(content) {
   if (!content) return []
   const data = JSON.parse(content)
 
-  return _.flatten(Object.values(data.result))
+  return Object.values(data.result).flat()
 }