Updated the migrations to indicate progress (Potential to base progress for the "processing" sections on the file size of the legacy database)
Updated the JobRunner to properly support concurrent queues for sending/receiving (other queues are still serial)
Added the typing indicator logic into the ConversationVC
Put code into SUKLegacy for connecting to the YDB database
Fixed a couple of minor UI bugs with the GalleryRailView
Updated the media gallery selection screen to use the appropriate system theme colouring (was painful to randomly swap from dark mode to like for one screen...)
Added an alert for when the database migration fails
Deleted the legacy migrations (manually applying any unapplied changes as part of the YDB to GRDB migration process)
Fixed a number of scrolling behaviours in the ConversationVC
Fixed a bug with the PagedDataObserver when observing associated data (multiple associations with a single paged result were broken)
Fixed a bug with the PagedDataObserver where it would trigger updates for new entries even if the user is offset from the latest data
Fixed a bug where marking as read wasn't working properly
Fixed a bug where outgoing messages were being considered unread
Added an error state for a failed attachment send
Renamed a few types for clarity
Resolved a bunch of TODOs
Removed the logic for 'oversizedText' (not sent by either iOS or Android and not handled at all by desktop)
Updated the HomeViewModel (and ConversationCell) to use the same query model as Global Search
Added an 'albumIndex' property to the InteractionAttachment so we can enforce a correct order (apparently SQLite doesn't do this by default)
Updated the YDB to GRDB migration to avoid creating GroupMembers if the current user isn't a member of a ClosedGroup (be consistent with the running logic)
Updated the attachment description logic to be consistent throughout
Cleaned up the Interaction preview generation logic
Tested and fixed a couple of issues with the disappearingMessages job
Added a simple dependency system for jobs (primarily for the AttachmentUploadJob, but will likely be others later)
Setup the AttachmentUploadJob again (looks like there are cases which use it)
Prevented a possible infinite job deferral loop from causing the app to crash (the loop is still technically possible but the app will continue to run now)
Updated the interactions unique constraints based on testing and discussions around how the serverHash works
Deleted the legacy ReadReceipt handling (now managed via the 'interaction.wasRead' flag and 'SendReadReceiptsJob')
Deleted the unused SSKIncrementingIdFinder