Support multiple profiles

[luisschwab]

Summary

Supporting multiple profiles in the same manner as X would be great.

Basic example

A simple dropdown on the sliding menu would do.

Motivation

From users with multiple accounts migrating from X, the lack of multi-profile support is a pain, with the need to use a different app or browser for each one.

PS: of course, this feature would apply to all platforms, but I'm not opening an issue on each one.