[ENHANCEMENT] (Enter your description here)Showing the wrong Week-Number in Norway

### Please confirm these before moving forward - [x] I have searched for my feature proposal and not found a work-in-progress/duplicate/resolved/discarded issue. - [x] This improvements refers to an existing feature. If you want to suggest a new feature, please use [this template](https://github.com/marticliment/ElevenClock/issues/new?assignees=marticliment&labels=new-feature&projects=&template=feature-request.yml&title=%5BFEATURE+REQUEST%5D+%28Enter+your+description+here%29). - [x] This improvements is not a bug. If you want to report a bug, please use [this template](https://github.com/marticliment/ElevenClock/issues/new?assignees=marticliment&labels=bug&projects=&template=bug-issue.yml&title=%5BBUG%5D+%28Enter+your+description+here%29). ### Describe the improvement Norwegian standard for Weeknumbering is "Week #1 of the year start the first week containing a Wednsday" So when we use the default system, starting Week #1 the first day of a new year, some years will show -1 smaller Week number than the geographical standard. The fix should be easy. If it is too advanced to start counting at the first week containing a wednsday, at least one can add a copy of the existing routine, subtracted 1. So we can adjust those years ourself. Like add the choice **[Show Weeknumber -1]** ### Describe how this improvement could help users This can able Norwegian users to show correct week number, as used in planning, and over all where calendars are frequently used. It sync the display with the rest of the appointment-calendars and planners.