Revert "Merge branch 'update-pipeline' into 'master'"

This reverts merge request !24 (merged)

It caused the applications to crash in prod.

portal/model/FlaskConfigEntry.py

 from flask import Flask
-from flask_sqlalchemy import DefaultMeta
 
 from portal import db
 
-BaseModel: DefaultMeta = db.Model
 
-
-class FlaskConfigEntry(BaseModel):
+class FlaskConfigEntry(db.Model):
     """
     A configuration entry for Flask (a key-value pair) as persisted in a database
     """