Release 2.0.20 (#4028)

* max duration per entry increased from 8 to 10 hours
* fixes #3981 - clickable area in dropdown too small
* fixes #4008 - duplicate activities in project-details report
* headers and summary styling in project-details report
* show billable stats in project-details report
* added new invoice variable for entry.duration_format

composer.json

@@ -34,7 +34,7 @@
         "friendsofsymfony/rest-bundle": "^3.0",
         "gedmo/doctrine-extensions": "^3.6",
         "jms/serializer-bundle": "^5.0",
-        "kevinpapst/tabler-bundle": "^0.16",
+        "kevinpapst/tabler-bundle": "^0.17",
         "league/csv": "^9.4",
         "mpdf/mpdf": "^8.0",
         "nelmio/api-doc-bundle": "^4.0",