Add calendar event widget

[Adish08]

Hello, Bonjourr is great, i am loving it <3!

I recommend to incorporate a calendar widget with the capability to synchronize with Google Calendar. As many of us organize our work and meetings using Calendar, this feature would greatly benefit everyone in staying informed and organized directly from the new tab page.

[Gitoffthelawn]

I don't know about this type of feature creep for this project... I love Bonjourr because it's the "Minimalist & lightweight startpage inspired by iOS". Although I see the benefit of syncing with calendars, will it still be minimalist and lightweight?

[Adish08]

I think it would make it more functional and productive, while maintaining minimalism, thus balancing it's principles.

[victrme]

@Gitoffthelawn It's fine as long as it is a widget toggled off by default.

The idea created by @Svec-Tomas in #416 is really well made! It would more look like a task list rather than a full featured calendar.

Also Google integration would never be enabled by default!

[Gitoffthelawn]

@victrme How much bulk do you think it would add to the code? Maybe if it could just use existing browser APIs, it could be kept minimal? Or would it require including an entire Google library?

[victrme]

It won't be more than 20kb in my opinion, and no dependencies. If there is a calendar to display, it will indeed be the built-in <input type="date"> 👍

And just like other widgets, nothing out of the 20kb of JS will run on startup if disabled !