merge branch dev

.idea/.gitignore

.idea/inspectionProfiles/Project_Default.xml

.idea/inspectionProfiles/profiles_settings.xml

.idea/modules.xml

.idea/systemdev_hrproject.iml

.idea/vcs.xml

app/__init__.py

app/db.py

app/dummydata.py

app/models.py

app/routes/auth.py

app/routes/discounts.py

app/routes/home.py

app/routes/inventory.py

app/routes/menu.py

app/routes/order.py

app/routes/payments.py

app/routes/reservations.py

app/routes/restaurant.py

app/routes/staff.py