Release 2.4.0 (#4427)

* button to duplicate old timesheets, even those from lockdown period
* bump composer packages
* fixes tooltip remains in view #4426
* fix js error if all widgets were removed
* allow to open timesheet edit dialog from export listing
* css classes for timesheet context menu, so they can be hidden
* added flag to force a user to set password upon login
* enable lazy-ghost-objects to fix deprecation
* change user, username, internal_rate export column labels
* helper method to find user by displayname
* log improvements and format changes
* deactivate broken schema validation

.gitignore

@@ -2,7 +2,7 @@
 /public/.htaccess
 /.env-*
 /.idea/
-/.DS_Store
+.DS_Store
 /phpstan.sh
 
 # custom apache rules e.g. to deactivate ioncube loader
@@ -22,12 +22,11 @@
 /var/data/*
 /var/cache/*
 /var/invoices*
-/var/export/*
+/var/export*
 /var/log/*
 /var/sessions/*
 /var/packages/*
-/var/plugins/*
-/var/plugins_old/
+/var/plugins*
 /var/plugins/*/*.disabled
 
 ###> symfony/framework-bundle ###