Add admin site link to navbar

Signed-off-by: Max Fierke <max@maxfierke.com>
Cleanup login form

Signed-off-by: Max Fierke <max@maxfierke.com>
Cleanup admin interface and add missing entities to admin site

Signed-off-by: Max Fierke <max@maxfierke.com>
Establish Person<->Transaction relationship

Signed-off-by: Max Fierke <max@maxfierke.com>
Add sonata admin section for transactions.

Signed-off-by: Max Fierke <max@maxfierke.com>
Implement input constraints for TransType fields

Signed-off-by: Max Fierke <max@maxfierke.com>