Merge branch 'registeration' into 'main'

.devcontainer/devcontainer.json

etc/resolv.conf

src/tjts5901/app.py

src/tjts5901/auth.py

src/tjts5901/static/styles.css

src/tjts5901/templates/auth/login.html

src/tjts5901/templates/auth/register.html

src/tjts5901/templates/base.html