Sorted out some more threading issues
Removed a redundant SyncPushTokensJob run
Fixed an issue where the NotificationServiceExtension could incorrectly setup the database before setting up it's context
Fixed a few warnings
Removed a bunch of legacy code
Refactored the MainAppContext from Objective C into Swift
Updated the SessionApp.presentConversation function from using the DBWrite thread if it didn't need to
Updated the PagedDatabaseObserver to process database commits async on a serial queue to avoid holding up the DBWrite thread
Moved another Atomic mutation outside of a DBWrite closure
Refactored the PagedDatabaseObserver 'databaseDidCommit' logic to be much more straightforward
Tweaked a couple of flaky unit tests
Added copy for an unrecoverable startup case
Added some additional logs to better debug ValueObservation query errors
Increased the pageSize to 20 on iPad devices (to prevent it immediately loading a second page)
Cleaned up a bunch of threading logic (try to avoid overriding subscribe/receive threads specified at subscription)
Consolidated the 'sendMessage' and 'sendAttachments' functions
Updated the various frameworks to use 'DAWRF with DSYM' to allow for better debugging during debug mode (at the cost of a longer build time)
Updated the logic to optimistically insert messages when sending to avoid any database write delays
Updated the logic to avoid sending notifications for messages which are already marked as read by the config
Fixed an issue where multiple paths could incorrectly get built at the same time in some cases
Fixed an issue where other job queues could be started before the blockingQueue finishes
Fixed a potential bug with the snode version comparison (was just a string comparison which would fail when getting to double-digit values)
Fixed a bug where you couldn't remove the last reaction on a message
Fixed the broken media message zoom animations
Fixed a bug where the last message read in a conversation wouldn't be correctly detected as already read
Fixed a bug where the QuoteView had no line limits (resulting in the '@You' mention background highlight being incorrectly positioned in the quote preview)
Fixed a bug where a large number of configSyncJobs could be scheduled (only one would run at a time but this could result in performance impacts)
Added the 'outdated client' warning banner
Added a unit test to validate the 'group(by:)' method maintains ordering
Added an error when trying to message a non-standard session id directly
Removed the "hide" logic for groups (don't want it)
Removed some unneeded thread fetching
Updated the logic to use the 'lastHash' when fetching config messages
Updated the logic to use the libSession value restrictions instead of hard-coded values
Fixed an issue where members weren't getting removed from legacy groups
Started cleaning up the TODOs
Fixed a couple of merge conflict issues
Fixed a bug with the state of attachments which failed to download
# Conflicts:
# SessionMessagingKit/Database/Models/Attachment.swift
Consolidated the PagedDatabaseObserver updating logic into a static function (can be improved further in the future)
Added defensive coding to prevent the LinkDeviceVC from crashing when the nav controller doesn't exist
Fixed an issue where the 'Permissions' callbacks were doing UI logic on background threads
Fixed an issue where the 'reloadCurrent' load type for the PagedDatabaseObserver was incorrectly increasing the 'currentCount' of the PageInfo
Fixed an issue where loading all of the data for paged data could result in a crash when the 'loadMore' section was removed
Fixed a bug where you couldn't start a conversation with an ONS
Fixed a bug where some dropdown settings wouldn't refresh their UI when returning from an update via a child screen
Copy tweak
Added a toast when copying the sessionId or group URL (fixes to the toast UI as well)
Fixed the new conversation screen styling
Fixed the styling of the various attachment screens
Updated the buttons on the attachment screen to behave like the input view buttons
Removed the old OWSNavigationBar and OWSNavigationController (logic was buggy and not actually needed in most cases)
Updated the settings screens to have the "rounded group" styling
Added a "loading conversations" label to the Message Requests screen before the conversations load
Removed the legacy UserCell (replaced with the more reusable 'SessionCell')
Renamed a few things to make them more generic and reusable
