Comms Queue count incorrect

[sqshemet]

Describe the bug
Comms queue count should include only commands/missions that haven't been ack'd by the vehicle. Not sure what it is counting, but it's not that.

To Reproduce
Steps to reproduce the behavior:

1. Go to any vehicle, Comms Queue pane
2. See count of items in queue
3. Open pane and scroll through, see that ~all commands have been acked

Expected behavior
"Items in queue" count captures only un-acked commands

Screenshots
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