* add sender/recipient info to file types
* send file to group (WIP)
* send file to group, test
* show file status when sending file to group
* notification when cancelled sending to group, remove chunks when file complete or canceleld
* schema for sending files
* send file "invitation"
* receive file "invitation"
* send/receive file flow (with stubs)
* update simplexmq
* send and receive the file (WIP - only the first chunk)
* sending and receiving file works (but it is slow)
* use correct terminal output for file sending/receiving
* improve file transfer, support cancellation
* command to show file transfer status and progress
* file transfer tests
* resume file transfer on restart (WIP)
* stabilize test of recipient cancelling file transfer
* trying to improve file transfer on restart
* update SMP block size and file chunk size
* acquire agent lock before chat lock to test whether it avoids deadlock
* fix resuming sending file on client restart
* manual message ACK (prevents losing messages between agent and chat client and stabilizes resuming file reception after restart)
* do NOT send file chunk after receiving it before it is appended to the file
* update file chunk size for SMP block size 8192 (set in smpDefaultConfig)
* save received files to ~/Downloads folder by default; create empty file when file is accepted
* keep file handle used to create empty file
* check message integrity
* fix trying to resume sending file when it was not yet accepted
* fix subscribing to pending connections on start
* update simplexmq (fixes smp-server syntax parser)
* TMVar lock to avoid subscriber and client processing in parallel, fix the test
* run SMP server as part of the test
* stabilize tests
* update simplexmq
* test: stabilize getting invitation from terminal
* remove unused import
* simplify test
* remove group member
* leave group, fix remove member, tests for leave group/remove member
* delete group with test
* prevent contact deletion error when it is a group member
* support inviting the group member who left or was removed
* use small retry interval in the tests
* test multiline outputs
* add category and local display name to group members, extend member status
* additional chat commands, serialization
* parse all chat messages
* draft group protocol implementation
* group protocol: connect new member to existing members (TODO fix race condition with contact connection)
* send/receive group messages (race condition still there - the 3rd member cannot send either group or direct messages to the 2nd member - CONN SIMPLEX)
* send x.grp.mem.info and x.ok in SMP confirmation
* fix host user adding new member, update simplexmq to fix sqlite concurrency, remove logs, make # optional in chat commands
* more precise view messages about members joining and connecting
* track connection status; only send messages to active members (TODO change to current members); group name autocomplete after joining the group
* track via which group the contact was added; show only one message when a contact fully connected; group tests
* test sending messages to the new direct contacts created via the group
* update simplexmq to include .cabal file
* remove unused import
* chat types, chat protocol syntax idea
* chat message syntax, raw message type
* chat message format and parsing
* raw chat message parsing test
* add message parsing tests
* interpret RawChatMessage
* use chat message format when sending messages
* save contacts and related connections to DB (WIP)
* use contacts in all chat commands (add, connect, send, delete)
* use contacts when receiving messages and notifications
* handle contact not found error
* automatically accept connection when CONF is received from the agent
