Stopped configuration messages from automatically creating threads for sync'ed contacts (now they will only be created if there are messages)
Updated the ConfigurationMessage to stop truncating the list of contacts but filter the full set (also update the logic to include previously approved contacts)
Fixed the unread message counting for message requests
Updated the message request banner to indicate the number of message requests with an unread message
Updated the message request banner to automatically disappear if the user has no unread message requests
Renamed a variable for ReadReceipt management to make it a bit more self-documenting (it looked like it would trigger a read receipt to be sent regardless of the setting)
Fixed a bug where the ConfigurationMessage was getting generated before the contact state was persisted to the database in the message request flow causing odd behaviours (now generating the ConfigurationMessage within the same transaction)
Fixed a bug where sending a message to an existing message request thread once the message requests item has been hidden would show the message requests notification and trigger the section to re-appear on the home screen
Fixed a bug where blocked contacts weren't getting excluded from the contacts list in the configuration message
Possibly fixed a crash due to a database deadlock
Fixed a crash when the first message requests gets added if there are no other threads
Added code to generate a bunch of random thread data (Needs some testing to ensure no data leaves the device)
Fixed a bug where the notification count could be increased for message requests
Fixed a bug where an approved contact could be 'unapproved' due to an order of execution issue when generating the config sync message
Fixed a check to avoid registering for push notifications when on the simulator (old check didn't cater for M1 Macs)
Moved the 'hasHiddenMessageRequests' into the group user defaults so it can be accessed within the notification extension
Added code to handle an edge case where an old client could incorrectly un-approve a contact via a legacy configuration message
Added some missing localised strings
Prevented 'Read' and 'Typing' indicators from functioning on Message Requests
Prevented link previews on the first message of a message request
Added a confirmation alert when trying to clear all message requests
Added a confirmation alert when trying to delete a message request
Added an empty state to the MessageRequestsViewController
Updated the back behaviour of the ConversationVC to behave more nicely with approving/declining message requests
Updated the OWSBlockingManager to also update the stored contacts 'isBlocked' flag to match
Added the MessageRequestsViewController
Added a 'Message Requests' button to the settings screen
Added accept/reject buttons for message requests to the ConversationVC
Added the ability to hide the message request item on the HomeVC (re-appears if you get a new message request)
Added code to handle an edge-case where the message request approval state wouldn't be returned to the sender due to the recipient running an old version of the app
Prevented contacts which aren't associated with an approved thread from appearing when creating a closed group
Disabled notifications for threads which aren't approved
Updated the app notification count to exclude unapproved messages
Updated the app to ignore closed group creation messages if the group has no admins which are approved contacts
Fixed up the keyboard avoidance behaviour in the ConversationVC
Fixed a couple of minor interaction issues which affected some devices
Fixed an issue where the database migrations would run on the 2nd launch when creating a new account (causing odd behaviours)
