Removed an unused endpoint
Moved 'Dependencies' into the Utilities folder (also out from being nested within 'OpenGroupAPI' since it can be broader than that)
Finished adding unit tests for the OpenGroupAPI
Removed a couple remaining TODOs
Added 'standardUserDefaults' to the 'Dependencies' type
Tweaked the OpenGroupAPI to only update the 'lastOpen' timestamp if it successfully polls
Refactored a couple of methods in the ConversationViewItem into swift so we can clean up the OpenGroupAPI more
Updated the OpenGroupAPI so it no longer has static variables for state (shifted to the OpenGroupManager and made them instance variables)
Fixed an encoding issue with the Capabilities.Capability
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)
Updated the OpenGroupManager to be a bit more thread safe
Updated the OpenGroupManager "isModOrAdmin" check to better support the various keys of the current user
Fixed some blinding code to use an existing transaction rather than create it's own ones
Removed the Legacy API calls, handling and types
Updated the direct file upload/download to use the non-base64 approaches as well
Updated the attachment 'serverId' value to be a string instead of a UInt64 (future-proofing)
Updated the OnionRequest V4 response handling to avoid converting the "response body" part to a string and processing that, instead just slice the byte array (ie. stopped it from being broken from multiple conversions)
Removed the base64-based file upload/download endpoints (no use including them when they are inefficient and we don't want to use them)
Got the updated file upload working
Removed the legacy 'room' header
Consolidated a number of types between SOGS, FileServer and general requests
Updated the OnionRequestAPI to deal with a Data payload (rather than encoding it to a string and then back to data)
Updated the join open group method to retrieve the capabilities as part of the initial request
Updated the OpenGroupManager to require a transaction to be passed to the various 'handler' methods (allowing for everything to be processed within a single transaction)
Fixed a few issues where we weren't storing the timestamp for open group messages and DMs which could result in duplicate messages
Fixed an issue where we were setting the timestamp value for messages sent to an open group without converting it to be milliseconds to be consistent with other messages
Fixed an issue where the BatchRequestInfo could incorrectly flag it's response as failing to parse even though the type was optional
Fixed a bug where the open group would re-fetch all messages every other time
Fixed a bug where the long press context menu wouldn't appear after failing to delete a message
Fixed a bug where joining an open group would trigger the join behaviour and APIs twice
Refactored the existing unit tests to use Quick
Started adding unit tests for a number of the OpenGroupAPI network models
Added unit tests for the SessionId type