Unit test analysis

* adds unit test for creating report
* fixes bug where new (>2018) eco accounts have not been fetched correctly from the  db
* adds enhancements in the frontend
* improves test data setup

analysis/tests/__init__.py

@@ -0,0 +1,7 @@
+"""
+Author: Michel Peltriaux
+Organization: Struktur- und Genehmigungsdirektion Nord, Rhineland-Palatinate, Germany
+Contact: ksp-servicestelle@sgdnord.rlp.de
+Created on: 15.08.23
+
+"""