Send invite on direct message

[undercase]

Fixes #1129. Features:

• Extends CreateThreadModal to support configuration parameters (ThreadConfig).
• Opens up a CreateThreadModal when creating a direct message thread so that the user can choose its initial name.
• Sends an invite to the contact when a direct message thread is created.

[andrewxhill]

Okay, some comments and some warns, up to you what you want with those @undercase

[asutula]

Sorry this one got a little stale. Let's get it updated, tests passing, and merged!

[undercase]

@andrewxhill I removed the dependency on ThreadConfig in CreateThreadModal and it's no longer exported. This should be ready for further review & merge.

[asutula]

I don't see anywhere in here that an invite is being sent? Maybe just help me out and explain how/where that works. Thanks!

[undercase]

@asutula CreateThreadModal will send invites once the user submits from that screen. I didn't manually add in the code to send an invite, I connected the button to CreateThreadModal, which handles it for me.

[undercase]

Anything I can do to get this ready for merge?

[sanderpick]

@asutula can we get this in? I think it's currently broken in the app when you "send a message", since no invite is sent and there is no way to add after the fact. My guess is this is a pretty common entry point to sharing since it's so intuitive.

[asutula]

Yea for sure. @undercase you want to get this thing up to date with master?