* add trigger for updated user
* Add referral bonuses and notifications for them
* Cleanup
* Add share group button, cleanup
* Cleanup
* Add referrals list to user profile
* Remove unused
* Referral bonus => constant
* Refactor
* Add referral txn to helper fn
* Move reads into firebase transaction
* Use effects to write referral info
* Flex-wrap profile objects
* Small ui changes
* Restrict referral user to one update
* Remove rogue semicolon
* Note about group referral query details
* Track referrals, add them to settings list
