Create entity Group.
Do nothing if there is no data to print.
Create list groups feature.
Validate nickname format.
Create group creation feature.
Add tags field to Group entity.
Enhance tags creation for entities.
Enhance tags creation for entities.
Make validation for uniqueness on User.nickname
Make validation for uniqueness on Group.name
Add scenarios to test features.
Code fixing.
Create relations between User and Group.
Hide pagination when there is only one page.
Enhance data table.
Add cancel button.
Create group dashboard page.
Set default name.