As a user, I want the notebook app to sync with my external calendars, so that I can organize my tasks and reminders in one place

[BrigitaKasemets]

Feature that will enable syncing other calendars (Google and apple etc.)

• [ ] Week starts with Monday.
• [ ] Indicator highlights current date.
• [ ] You can add events and reminders from ''+'' button in top menu.
• [ ] Clicking on ''+'' Opens up view for creating an event.
• [ ] You can bring other calendar's data into this calendar.
• [ ] You can categorize your events by colour.

[henno]

Be more specific how it will work

[BrigitaKasemets]