(#1) - WebPack bundling of JS and CSS (#1)

This work was done with Claude.

Added bundling of CSS & JS with WebPack. This also means minimization.

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Co-authored-by: Martin Slachta <martin.slachta@outlook.com>
Reviewed-on: #1

assets/js/services/RsvTimetableService.js

@@ -1,4 +1,6 @@
-const RsvTimetableService = {
+import { get_rest_url } from '../RsvApi.js';
+
+export const RsvTimetableService = {
   get_all() {
     return fetch(get_rest_url('timetable'), { method: 'GET' })
       .then(r => {