[FEATURE] Replace custom calendar with kizitonwose/Calendar

[EmmaTellblom]

Replace the custom calendar that is in the app today with a vertically scrolled calendar from kizitonwose/Calendar repo. This will enable us to let user choose start day of week and customize the calendar in a better way.

Stuff to fix in the new calendar

• Add/remove perioddates
• Add/remove ovulation
• Add/remove symptoms
• Show symptoms
• Show predicted Period
• Show predicted Ovulation
• Show passed Period
• Show passed Ovulation
• Selection of date(s)
• Todays date
• Cyclenumbers
• Fix texts on buttons (add/remove)
• Fix enable/disable on buttons
• Notifications
• Use predifined lists instead of local for month name and day names
• New setting in database for weekday
• Dynamic fetch of start weekday in calendar screen
• Weekstart in settings
• Fix translation fields for new settings (changing of startday for week in calendar)

[EmmaTellblom]

I have decided to deprecate "selected period color" and only go with "selected color". This is because we dont have a color for "selection of ovulation". Its a bit overkill to have a distinct color for selecting a period date. You would probably know that you have selected a period date anyways.

[EmmaTellblom]

I added three new db-functions that returns dates for focused month, but also previous month and following month. This is due to bigger screens will be able to show more than one month at a time and it would be nice for the user to have all of the data at one glance.

Issues;
val startMonth = remember { currentMonth.minusMonths(50) } // Adjust as needed
val endMonth = remember { currentMonth.plusMonths(50) } // Adjust as needed

I would rather we didn't have these variables because I don't want to limit the user to 50 months back/future. But haven't figured out how to make it dynamic yet.

[EmmaTellblom]

Startday of week will not be implemented as a setting. We will fetch this from the users locale instead. If there are users who would want us to have this as a seperate setting, then we will look at implementing it.