Fix add to homescreen button

[Mcgurk-Adam]

The bugs I'm filing don't really follow the bug reporting template, I should probably change it up.

The add to homescreen button is a disgusting blight on an otherwise pretty good application. I want to change it. That probably means changing up the whole flow or not even including an add to homescreen button at all because it should only be used once by anyone. ie, just because we can, doesn't mean we should.

[Mcgurk-Adam]

In commit #60, I took out the add-to-home screen button. This is a short term fix, but I want the ability to add this to your homescreen for potential use cases.

And maybe that use case is we present hooks for different email clients so you can add it to all of your email clients.