Language switching works

app.js
   - call to index.js changed

public/javascripts/global.js
   - no more show version
   - no more 'showReset

routes/index.js
   - added 'translate'-function

views/index.pug
   - texts changed for translation

views/layout.pug
   - show version and date

public/javascripts/map.js
   - added text from server

charts/preparecharts.js
   - translate texts

locales/[en|de]/translation.json
   - new translations

charts/urils.js
   - added translations

package.json
  "version": "3.0.2",
   "date": "2023-04-19 11:00 UTC",

routes/index.js

@@ -8,11 +8,16 @@ const renderOpts = (sid) => {
   return {
     title: name,
     version: version,
-    date: date,
+    date: date.slice(0,10),
     csensor: sid
   }
 }
 
+let i18n;
+
+const translate = (x) => {
+  return i18n.t(x)
+}
 /* GET home page. If there is no parameter 'lng=xx', checke stored language and call 
 te page again wird correct language (chglang.js))
 */
@@ -21,7 +26,9 @@ router.get('/', function(req, res, next) {
   if(req.query.lng === undefined) {
     res.render('chglang')
   } else {
-    res.render('index', renderOpts(-1))
+    i18n = req.i18n
+    let opts = renderOpts(-1)
+    res.render('index', opts)
   }
 })
 
@@ -41,4 +48,6 @@ router.get('/:sid', async function(req, res, next) {
   }
 })
 
-export default router
+//export default router
+
+export  { router, translate }