Release 2.3.0 (#4412)

- move user-preferences to edit submenu
- unify user preferences with other forms
- use light fieldset for all user-edit-forms
- support offcanvas elements
- allow to dynamically inject toolbar buttons (via plugins)
- use interface for formatting dates
- improve docker issue template
- bump version and composer packages

public/build/calendar.a1cbcd7b.js.LICENSE.txt

@@ -0,0 +1,23 @@
+/*!
+  * Bootstrap v5.3.0-alpha3 (https://getbootstrap.com/)
+  * Copyright 2011-2023 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 v5.11.3
+Docs & License: https://fullcalendar.io/
+(c) 2022 Adam Shaw
+*/