♻️(backend) refactor post hackathon to a first working version

This project was copied and hacked to make a POC in a 2-day hackathon.
We need to clean and refactor things in order to get a first version
of the product we want.

src/backend/.pylintrc

@@ -172,7 +172,7 @@ ignore-on-opaque-inference=yes
 # for classes with dynamically set attributes). This supports the use of
 # qualified names.
 ignored-classes=optparse.Values,thread._local,_thread._local,responses,
-                Team,Contact
+                Template,Contact
 
 # List of module names for which member attributes should not be checked
 # (useful for modules/projects where namespaces are manipulated during runtime