Refactoring multi provider code

[kbertodatti]

1 I'm sure everyone can think of something, but, the most important one to me is the duplication of logic for single and multi providers when logging in on app launch vs logging in from the additional page. This shared code needs to be merged into single reusable functions which offer the differing but similarfunctionality, but don't require extensive simultaneous updates every time and testing. It is a complex task that I should take on.