Calendar integration

[bitshiftnetau]

Link to service: https://calendar.google.com/

Is there a free account option?: Yes

Describe the solution you'd like

Calendar integration and view in the extension. I should be able to start a pomodoro from the extension in a calendar view, just like within the ios/osx/web apps. The extension should be pound-for-pound identical.

To avoid confusion, I am stating here that I have requested the same thing on the desktop app: [https://github.com/toggl-open-source/toggldesktop/issues/4892 ](#4892 in the desktop app). These are two separate requests for the same feature across two different toggl apps and should not be confused

Additional context

Full convergence should be your priority, there shouldn't be major differences between the apps unless we are talking about some of the proj mgmt features that you can find in the web app. That is a justifiable splintering, but it should end there. Everything else should have features developed in tandem or not at all.