[Fix] Registering Issue (#125)

Co-authored-by: Tim Lorsbach <tim@lorsba.ch>
Reviewed-on: enviPath/enviPy#125

envipath/settings.py

@@ -348,6 +348,7 @@ FLAGS = {
 # path of the URL are checked via "startswith"
 # -> /password_reset/done is covered as well
 LOGIN_EXEMPT_URLS = [
+    '/register',
     '/api/legacy/',
     '/o/token/',
     '/o/userinfo/',