[FR] Import calendars from .ical

[mtoniott]

Description

Hello,

It would be nice to make Appflowy able to fetch data from .ical / other calendars and have all that data available inside appflowy.

Impact

This will help all users using Appflowy in a professional settings where, for sure, shared calendars are already a thing

Additional Context

I am pretty sure there are dozen of libraries to do so. I guess the clients would be responsible to fetch the calendars at startup ?

[Artemis1-0]

I think there's another issue for this

[Artemis1-0]

Never mind, mb. Would be very handy.