refactor to make way for dockerization

app/requirements.txt

@@ -0,0 +1,25 @@
+# This file is used by pip to install required python packages
+# Usage: pip install -r requirements.txt
+
+# Flask Framework
+click==8.1.3
+Flask==2.2.2
+itsdangerous==2.1.2
+Jinja2==3.1.2
+MarkupSafe==2.1.1
+Werkzeug==2.2.2
+
+# Flask Packages
+Flask-Login==0.6.2
+Flask-Migrate==3.1.0
+Flask-Script==2.0.6
+Flask-SQLAlchemy==3.0.2
+Flask-WTF==1.0.1
+Flask-User==1.0.2.2
+
+# WTForms Extensions
+WTForms-SQLAlchemy==0.3.0
+
+# Automated tests
+pytest==7.2.0
+pytest-cov==4.0.0