[Free Extension] Extended Calendar

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Hi,
this is my first exploit (with IA) in github
basic print-to-pdf of calendar (personal : week and day) and timeline and navigation (datePicker + arrow)
pencil-edit icon on agenda (right bottom corner of events mouse up) (week, day) for open edit modal

All respect out-of-box espocrm color .. and it's efficient. Certainly need some "specialist review". feel free to fork or ?
it's light for my use case

https://github.com/hturkoz/ext-calendar

use pdf-lib.js

Licence => Espocrm

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New Feature : Find free common slots in timeline.
A new icon on timeline, open a modal, you select some users and find free slots.