[frontend] Implement a push notifications enable/disable option in the dashboard

[pfortuna]

We need UIUX

[geiras]

I was already thinking about moving that option to the new menu that should replace the avatar on the dashboard.

I would also move everything that's not needed on the dashboard to the same menu, as in the following image.

What do you think?

[pfortuna]

It's not "Eliminar dados" but "Eliminar conta".

I have some doubts on the notifications. We have two kinds: 1) push notifications; 2) in-app notifications. I assume you enable and disable them using the same switch.

How do we access this menu?

[pfortuna]

Don't consider this design, consider the design of issue #316 instead.

We still don't know how to access this menu @geiras

[geiras]

Here are my proposals.

[pfortuna]

see my last comment in issue #316

[geiras]

Answered there. TLDR: I don't know which icon would make people click more, a hamburger menu icon or a settings icon.