Small improvement to Warpcast web

If you're logged in on web and you log out on mobile, you'll remain logged in on web! 

Useful for managing multiple accounts.

A basic way to do this:

1. Set up a new Chrome Profile for each additional account.

2. Log in once with your phone

3. Shift-⌘-M on Mac to quick switch

To be clear: there are a bunch of other clients that are much better for managing multiple accounts.

This was more of a simple switch on our end we should have done earlier.

Which clients would you suggest for multiple accounts?