Improve async channels error handling and replace unbounded channels with bounded channels

Remove all unbounded channels to prevent unbounded memory usage and
potential crashes.

Use `FuturesUnordered` for sending to multiple channels simultaneously.
This prevents the sending loop from blocking if one channel is blocked,
and helps handle errors properly.

1 files changed, 1 insertions, 0 deletions

diff --git a/Cargo.lock b/Cargo.lock
index b193f82..8ca75d2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1229,6 +1229,7 @@ dependencies = [
  "chrono",
  "dirs",
  "ed25519-dalek",
+ "futures-util",
  "log",
  "once_cell",
  "parking_lot",