TODO:

• add tasktracker
• add question dialog when program is launched a second time on the same day if the worktime should be continued or a break should be added
• add new setting for how many days per week are working days
• add new setting to set if current day should be excluded from summaries
• add new setting to set if weekly summaries should be shown
  • add weekly summaries
• fix calculation of estimated ending time to use actual working hours per day instead of fixed 8 hours plus 30 minutes break
• add updater
• add issue overview table
• add new setting to set the country the user lives in to calculate different public holidays
• count days of week at the start and end of month to calculate correct weekly summaries
  • subtract holidays, vacations and sick days from weekly summaries
• add new setting if weekly/all overtime should be included in calculation of est ending time