"INVITED" indication when using share app

[jaytat0]

• When INVITE is clicked it instantly becomes INVITED even though no app has yet been chosen with which to share and no invite has been sent. This should reflect that an INVITE has actually been sent.

• When a contact has INVITED next to it, if you browse away and come back to new chat that status has reverted to INVITE. This should persist.

[jaytat0]

Invites via the share intent should have an indication of contacts having been invited