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

public/build/manifest.json

@@ -3,7 +3,7 @@
   "build/app.js": "/build/app.694c6cb5.js",
   "build/export-pdf.css": "/build/export-pdf.d8a6c23b.css",
   "build/export-pdf.js": "/build/export-pdf.587575e7.js",
-  "build/invoice.css": "/build/invoice.b17784c1.css",
+  "build/invoice.css": "/build/invoice.3c80ee80.css",
   "build/invoice.js": "/build/invoice.c8ae95ad.js",
   "build/invoice-pdf.css": "/build/invoice-pdf.c88953bb.css",
   "build/invoice-pdf.js": "/build/invoice-pdf.d86b82ee.js",