Using and showing always local time

routes/api.js
   - console.log deleted

public/javascripts/global.js
   - made 'params' to const
   - added setNoUTC in main

public/javascripts/showcharts.js
   - added setNiUTC to set global at highcharts

package.json
   - added luxon
     "version": "3.0.4",
     "date": "2023-04-24 18:00 UTC",

routes/api.js

@@ -23,7 +23,6 @@ router.get('/:cmd', async function(req, res, next) {
 //  req.i18n.changeLanguage(req.query.lng)
   const cmd = req.params.cmd
   const lng = getLanguage()
-  // console.log('api.js: cmd = ' + cmd + ', language = ' + lng)
   let url = APIHOST
   url += (req.originalUrl + `&lng=${lng}`)
   try {