updated frontend builds (#5210)

* do not rely on node_modules path
* bump eslint to v9, run eslint via npm task, remove from build task
* loosen dependencies and update all packages
* rebuild assets with latest frontend packages
* bump webpack encore and dependencies
* bump to latest stable yarn
* explicitly mention dependencies

public/build/calendar.cf8275ae.js.LICENSE.txt

@@ -0,0 +1,23 @@
+/*!
+  * Bootstrap v5.3.3 (https://getbootstrap.com/)
+  * Copyright 2011-2024 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
+  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+  */
+
+/*!
+ * [KIMAI] KimaiCalendar: wrapping Fullcalendar.io
+ */
+
+/*!
+ * [KIMAI] KimaiColor: handle colors
+ */
+
+/*!
+ * [KIMAI] KimaiContextMenu: help to create, position and display context menus
+ */
+
+/*!
+FullCalendar v5.11.5
+Docs & License: https://fullcalendar.io/
+(c) 2022 Adam Shaw
+*/