*** WIP *** Language switching works

public/javascripts/checklang.js
   - better description in comment

views/chglang.pug
   - text for 'h1' changed

routers/index.js
   - more comment

views/index.pug
   - no more action on click at language

package.json
  "version": "3.0.1",
  "date": "2023-04-17 13:00 UTC",

public/stylesheets/style.sass
   - css for 'Loading' on first page

locales/en/translation.json
   - type

views/index.pug

@@ -92,10 +92,10 @@ block content
               label.thelabels
                 | #{t("Language")}:
               .form-check.form-check-inline
-                input#en.form-check-input(type="radio" name="lanbut" onchange='chglang("lng/?lng=en")', checked)
+                input#en.form-check-input(type="radio" name="lanbut", checked)
                 label.form-check-label(for="en") English
               .form-check.form-check-inline
-                input#de.form-check-input(type="radio" name="lanbut" onchange='chglang("lng/?lng=de")')
+                input#de.form-check-input(type="radio" name="lanbut")
                 label.form-check-label(for='de') Deutsch
         .modal-footer
             button.btn.btn-secondary(type="button" data-bs-dismiss="modal") #{t("Close")}