Automatic refresh after change of settings

routes/api.js
   - check error on return from server

public/javascripts/global.js
   -  reload pages with new values after save at settings

public/javascripts/map.js
   - removed status.loaded=true after call to laodAll

public/javascripts/showcharts.js
   - also load live at loadAll

routes/api.js

@@ -32,6 +32,10 @@ router.get('/:cmd', async function(req, res, next) {
     if (response.status !== 200) {
       res.json({err: `Error from servercall: status = ${response.status}`})
     }
+    if(response.data.err) {
+      res.json(response.data)
+      return
+    }
     const options = response.data.options
     for(let x of disttable) {
       if (x.type === options.data) {