Soeky/pomo

AI Summary: Enhance the `pomo stat` command to display the day, week, month, and year in a user-friendly format, including emojis, when displaying session statistics. The output should clearly indicate the time period for the statistics.

AI Summary: Implement logging in the `pomo` CLI Pomodoro timer application to record key events and potential errors for debugging purposes. This involves adding logging statements to critical sections of the code, likely using a suitable logging library.