Icon reaction "save" on Slack message not persisting

The emoji/icon reaction used to "save" a Slack message doesn't behave as expected — the reaction/save state on the message isn't persisting or working correctly.

Reported in Slack thread: https://komodorio.slack.com/archives/C0BBF0VJNUS/p1782990662831429

Checked existing open/closed issues in this repo for overlap (keywords: reaction, emoji, bookmark, save icon) — found no existing issue covering this.