Add a method for retrieving top content in the last 31 days
Add a route for retrieving top content stats in the last 31 days
Add a method for retrieving top content stats in the last 7 days
Add a route for retrieving top content stats in the last 7 days
Add a method and route for retrieving top contents today
Add action to control button, swicthing date range for top contents stat
Add a loader for top contents
Add CSS rules for top contents loader
Implement loader for top content stats
Improve README.md