release 2.0 beta (#3722)

* remove twitter link
* remove WIP file
* adjust release draft message
* reset code coverage threshold back to 0.5
* changed wordings
* re-activate wizard for fixture accounts
* fix repo url and license
* license identifier
* bump version
* moved Kimai 1 import command from core to plugin
* do not traverse into invoice template subdirectories (#3735)
* fix branch alias
* composer update
* switch language on wizard select
* new twig function to create qr code
* fix daily stats in timesheet listing
* improved html invoice templates

tests/Twig/RuntimeExtensionsTest.php

@@ -49,6 +49,7 @@ class RuntimeExtensionsTest extends TestCase
             'encore_entry_css_source',
             'render_widget',
             'icon',
+            'qr_code_data_uri',
         ];
 
         $i = 0;