♻ Move project source files to top level from src, update Sentry dependency (#630)

Co-authored-by: Sebastián Ramírez <tiangolo@gmail.com>

backend/scripts/format.sh

@@ -0,0 +1,6 @@
+#!/bin/sh -e
+set -x
+
+autoflake --remove-all-unused-imports --recursive --remove-unused-variables --in-place app --exclude=__init__.py
+black app
+isort --recursive --apply app