Work time view - Weekly mode

On the My Statistics / Personal Record page, it would be useful to have a toggle that displays "work time" also in a weekly view (currently, only a monthly view is available).

The practical reason is that it allows me to see my overtime or missing hours more easily and adjust my workload plan for the upcoming week. A weekly view is less abstract than a monthly summary and makes it easier to calculate, for example, if I need to work an extra day in the upcoming week.